1. Language classification, geography and identity

Sakao (Port Olry; Hog Harbour/Nkep) is historically associated with northeastern Espiritu Santo, Vanuatu, especially Port Olry and Hog Harbour. ISO 639-3 identifier: sku. Genealogy: Austronesian > Oceanic > Northern and Central Vanuatu > Santo. Sakao is an Oceanic language of the northeast coast of Espiritu Santo. Jacques Guy’s grammar studies the northern Port-Olry variety and explicitly distinguishes a southern Hog Harbour variety. Recent local documentation commonly refers to the Hog Harbour language as Nkep, and the speakers’ own sense of distinct identity is important: the two varieties have been described as mutually intelligible while their historical classification is a matter of linguistic and community inquiry. Sakao is not Tolomako, an adjacent language with a different phonological profile.

2. Original linguistic sources and historical chronology

Jacques Guy wrote A Grammar of the Northern Dialect of Sakao, a Melanesian Language of Espiritu Santo (New Hebrides), in 1972 and also published major descriptive and historical-comparative studies in 1974 and 1977. The grammar describes the northern variety and contrasts it with the southern one. In a 1995 account Guy summarized his research into Sakao stress, unstressed vowel loss, and vowel-system expansion. A later doctoral study by Jean-Christophe Touati (2014) treats Sakao of northeast Santo. These research periods are distinct from the dates of actual speaker use and must not be conflated with a current demographic census.

Historical dates and scholarly fieldwork records must not be mistaken for dates of language origin, contemporary speaker totals or proof of current speech practices.

3. Alphabet, orthography, speech sounds and pronunciation

Guy’s analysis describes an unusually large vowel system for an Oceanic language: approximately eleven or twelve vowel phonemes depending on the variety and analysis. Historical innovations include stress differentiation and loss or weakening of unstressed vowels, which produce striking consonant clusters in the southern variety. The northern variety shows additional inserted vowels, some of which became contrastive. Guy’s 1995 comments warn that old southern-dialect missionary orthography relied on italics for vowel distinctions, often inconsistently. It is thus unsound to pronounce a nineteenth-century printed word by assigning ordinary English vowel values or to assume one modern Sakao spelling for both dialects.

Source graphemes, phonemic symbols, special diacritics and practical community spelling should be distinguished. Scholars’ transcription in Latin letters does not establish a separate ancient writing system.

4. Grammatical structures, morphology and syntax

Sakao’s phonological and morphological complexity is documented in Guy’s northern grammar. He discusses varied deictic structures, pronoun and verb morphology and densely organized verb complexes. Analysis of the southern variety, commonly associated with Nkep, must not automatically be projected onto Port-Olry Sakao; apparent lexical differences can arise from historical sound changes or independent lexical development. Source-based lessons should read the 1972 grammar’s authentic examples and compare them cautiously with Touati’s later thesis or community materials.

Original native examples need exact text locations and the correct dialect. Morphology or word order from a genealogical neighbor is not an independently verified rule for this language.

5. Selected historical forms and identifiers

• sku: ISO 639-3 code, catalogue metadata only.
• Port-Olry: northern-dialect place designation.
• Hog Harbour: southern-dialect place designation.
• Nkep: community name associated with Hog Harbour.
• Sakao: language name in Guy’s scholarly descriptions.

These short entries are explicitly sourced historical lexemes or catalogue and locality identifiers. They are not a phrasebook or a claim of unified modern pronunciation.

6. Cultural history, local communities and language use

Sakao communities have used mission and locally produced writing, including early biblical materials. Early religious translations are historically valuable but Guy notes substantial problems with their representation of Hog Harbour speech. Modern community designations such as Nkep deserve proper attribution, and old written examples should not be treated as transparent contemporary conversational sentences. Place, speaker, dialect, collection date and recording genre are crucial for documentary literacy.

Historical community descriptions and printed literature are situated sources. Community review, intellectual attribution and archive usage rights matter when teaching materials are derived from them.

7. Identifiable scholarly source bibliography

1. Jacques Guy, A Grammar of the Northern Dialect of Sakao, ANU thesis. https://openresearch-repository.anu.edu.au/server/api/core/bitstreams/da2cad67-777a-44c6-8620-3d983ae1698b/content
2. Jacques Guy (1995), comparative discussion of Sakao dialects and historical vowels. https://linguistlist.org/issues/6/572/
3. WALS Sakao, source records and ISO 639-3 sku. https://wals.info/languoid/lect/wals_code_sak
4. ASJP Sakao, Touati 2014 bibliographic provenance. https://asjp.clld.org/languages/SAKAO
5. ABVD Sakao Port-Olry, Jacques Guy source. https://abvd.eva.mpg.de/austronesian/language.php?id=230

Publication names support source tracking; full original-language lessons must cite the exact source page, dictionary headword or recorded segment. Materials in public-domain editions still require faithful transcription and attribution.

8. Ten focused language-specific study themes

1. Guy 1972 northern Sakao grammar. Explain the historical source, actual original-language data, and a concrete linguistic research question.
2. Port-Olry versus Hog Harbour. Explain the historical source, actual original-language data, and a concrete linguistic research question.
3. Nkep community identification. Explain the historical source, actual original-language data, and a concrete linguistic research question.
4. Guy 1974 comparison. Explain the historical source, actual original-language data, and a concrete linguistic research question.
5. Guy 1977 vowel origins. Explain the historical source, actual original-language data, and a concrete linguistic research question.
6. 1995 author’s phonological observations. Explain the historical source, actual original-language data, and a concrete linguistic research question.
7. eleven or twelve vowels. Explain the historical source, actual original-language data, and a concrete linguistic research question.
8. historical unstressed vowel loss. Explain the historical source, actual original-language data, and a concrete linguistic research question.
9. old missionary spelling issues. Explain the historical source, actual original-language data, and a concrete linguistic research question.
10. Touati 2014 dissertation. Explain the historical source, actual original-language data, and a concrete linguistic research question.

9. Ninety numbered research and assessment objectives

Nine modules of ten lessons each provide an ordered sequence from historical source criticism to phonological data, lexical semantics, authentic grammatical examples, original texts, regional comparisons and community stewardship. Every lesson produces an auditable research deliverable.

Module 1: Identity and documentary chronology — Lessons 1–10

Documentary anchor: Guy 1972 northern Sakao grammar. Secondary historical focus: Port-Olry versus Hog Harbour. Exact source notation and scholarly period are integral to the analysis.

1. Lesson 1: Local and alternative names — Guy 1972 northern Sakao grammar. Locate an original-language witness and preserve its exact source spelling, named author or speaker and citation or recording locator. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
2. Lesson 2: Island and settlement geography — Port-Olry versus Hog Harbour. Compare what the source directly demonstrates with a typological hypothesis, and explain why the latter is not yet established. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
3. Lesson 3: Genealogical classification — Nkep community identification. Prepare a concise evidence table with language variety, source date, original form, gloss and phonetic or morphological annotation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
4. Lesson 4: Neighboring language distinctions — Guy 1974 comparison. Evaluate how text genre, regional contact, fieldwork methodology or historical spelling might alter the linguistic interpretation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
5. Lesson 5: First published source — Guy 1977 vowel origins. Define a precise archival or speaker-led verification procedure where evidence is insufficient, rather than constructing an unattested native sentence. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
6. Lesson 6: Source authors and contributors — 1995 author’s phonological observations. Locate an original-language witness and preserve its exact source spelling, named author or speaker and citation or recording locator. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
7. Lesson 7: Fieldwork chronology — eleven or twelve vowels. Compare what the source directly demonstrates with a typological hypothesis, and explain why the latter is not yet established. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
8. Lesson 8: Mission and archival genre — historical unstressed vowel loss. Prepare a concise evidence table with language variety, source date, original form, gloss and phonetic or morphological annotation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
9. Lesson 9: Diachronic evidence limitations — old missionary spelling issues. Evaluate how text genre, regional contact, fieldwork methodology or historical spelling might alter the linguistic interpretation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
10. Lesson 10: Annotated source catalogue — Touati 2014 dissertation. Define a precise archival or speaker-led verification procedure where evidence is insufficient, rather than constructing an unattested native sentence. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.

Module 2: Alphabet and phonological investigation — Lessons 11–20

Documentary anchor: Port-Olry versus Hog Harbour. Secondary historical focus: Nkep community identification. Exact source notation and scholarly period are integral to the analysis.

11. Lesson 11: Source orthographies — Port-Olry versus Hog Harbour. Prepare a concise evidence table with language variety, source date, original form, gloss and phonetic or morphological annotation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
12. Lesson 12: Consonant inventory — Nkep community identification. Evaluate how text genre, regional contact, fieldwork methodology or historical spelling might alter the linguistic interpretation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
13. Lesson 13: Vowel inventory — Guy 1974 comparison. Define a precise archival or speaker-led verification procedure where evidence is insufficient, rather than constructing an unattested native sentence. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
14. Lesson 14: Stress and prosody — Guy 1977 vowel origins. Locate an original-language witness and preserve its exact source spelling, named author or speaker and citation or recording locator. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
15. Lesson 15: Syllabic evidence — 1995 author’s phonological observations. Compare what the source directly demonstrates with a typological hypothesis, and explain why the latter is not yet established. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
16. Lesson 16: Historical phonological shifts — eleven or twelve vowels. Prepare a concise evidence table with language variety, source date, original form, gloss and phonetic or morphological annotation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
17. Lesson 17: Diacritics and transcription — historical unstressed vowel loss. Evaluate how text genre, regional contact, fieldwork methodology or historical spelling might alter the linguistic interpretation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
18. Lesson 18: Different dialect conventions — old missionary spelling issues. Define a precise archival or speaker-led verification procedure where evidence is insufficient, rather than constructing an unattested native sentence. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
19. Lesson 19: Audio and original symbols — Touati 2014 dissertation. Locate an original-language witness and preserve its exact source spelling, named author or speaker and citation or recording locator. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
20. Lesson 20: Evidence-based pronunciation review — Guy 1972 northern Sakao grammar. Compare what the source directly demonstrates with a typological hypothesis, and explain why the latter is not yet established. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.

Module 3: Lexical history and original meanings — Lessons 21–30

Documentary anchor: Nkep community identification. Secondary historical focus: Guy 1974 comparison. Exact source notation and scholarly period are integral to the analysis.

21. Lesson 21: Dictionary source date — Nkep community identification. Define a precise archival or speaker-led verification procedure where evidence is insufficient, rather than constructing an unattested native sentence. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
22. Lesson 22: Human body terminology — Guy 1974 comparison. Locate an original-language witness and preserve its exact source spelling, named author or speaker and citation or recording locator. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
23. Lesson 23: Family and kinship — Guy 1977 vowel origins. Compare what the source directly demonstrates with a typological hypothesis, and explain why the latter is not yet established. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
24. Lesson 24: Village and place names — 1995 author’s phonological observations. Prepare a concise evidence table with language variety, source date, original form, gloss and phonetic or morphological annotation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
25. Lesson 25: Plants and ecology — eleven or twelve vowels. Evaluate how text genre, regional contact, fieldwork methodology or historical spelling might alter the linguistic interpretation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
26. Lesson 26: Sea travel and fishing — historical unstressed vowel loss. Define a precise archival or speaker-led verification procedure where evidence is insufficient, rather than constructing an unattested native sentence. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
27. Lesson 27: Numerals — old missionary spelling issues. Locate an original-language witness and preserve its exact source spelling, named author or speaker and citation or recording locator. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
28. Lesson 28: Movement and spatial terms — Touati 2014 dissertation. Compare what the source directly demonstrates with a typological hypothesis, and explain why the latter is not yet established. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
29. Lesson 29: Cognates and borrowing — Guy 1972 northern Sakao grammar. Prepare a concise evidence table with language variety, source date, original form, gloss and phonetic or morphological annotation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
30. Lesson 30: Ten-item cited lexical notebook — Port-Olry versus Hog Harbour. Evaluate how text genre, regional contact, fieldwork methodology or historical spelling might alter the linguistic interpretation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.

Module 4: Nouns, possession and reference — Lessons 31–40

Documentary anchor: Guy 1974 comparison. Secondary historical focus: Guy 1977 vowel origins. Exact source notation and scholarly period are integral to the analysis.

31. Lesson 31: Noun phrase structure — Guy 1974 comparison. Compare what the source directly demonstrates with a typological hypothesis, and explain why the latter is not yet established. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
32. Lesson 32: Pronoun person categories — Guy 1977 vowel origins. Prepare a concise evidence table with language variety, source date, original form, gloss and phonetic or morphological annotation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
33. Lesson 33: Singular and plural — 1995 author’s phonological observations. Evaluate how text genre, regional contact, fieldwork methodology or historical spelling might alter the linguistic interpretation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
34. Lesson 34: Dual if attested — eleven or twelve vowels. Define a precise archival or speaker-led verification procedure where evidence is insufficient, rather than constructing an unattested native sentence. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
35. Lesson 35: Articles and determiners — historical unstressed vowel loss. Locate an original-language witness and preserve its exact source spelling, named author or speaker and citation or recording locator. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
36. Lesson 36: Demonstratives — old missionary spelling issues. Compare what the source directly demonstrates with a typological hypothesis, and explain why the latter is not yet established. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
37. Lesson 37: Inalienable possession — Touati 2014 dissertation. Prepare a concise evidence table with language variety, source date, original form, gloss and phonetic or morphological annotation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
38. Lesson 38: Alienable constructions — Guy 1972 northern Sakao grammar. Evaluate how text genre, regional contact, fieldwork methodology or historical spelling might alter the linguistic interpretation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
39. Lesson 39: Nominal modifiers — Port-Olry versus Hog Harbour. Define a precise archival or speaker-led verification procedure where evidence is insufficient, rather than constructing an unattested native sentence. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
40. Lesson 40: Original noun phrase analysis — Nkep community identification. Locate an original-language witness and preserve its exact source spelling, named author or speaker and citation or recording locator. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.

Module 5: Verbs and clause organization — Lessons 41–50

Documentary anchor: Guy 1977 vowel origins. Secondary historical focus: 1995 author’s phonological observations. Exact source notation and scholarly period are integral to the analysis.

41. Lesson 41: Verb identification — Guy 1977 vowel origins. Evaluate how text genre, regional contact, fieldwork methodology or historical spelling might alter the linguistic interpretation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
42. Lesson 42: Verb roots and affixes — 1995 author’s phonological observations. Define a precise archival or speaker-led verification procedure where evidence is insufficient, rather than constructing an unattested native sentence. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
43. Lesson 43: Argument structures — eleven or twelve vowels. Locate an original-language witness and preserve its exact source spelling, named author or speaker and citation or recording locator. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
44. Lesson 44: Aspectual interpretation — historical unstressed vowel loss. Compare what the source directly demonstrates with a typological hypothesis, and explain why the latter is not yet established. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
45. Lesson 45: Time reference — old missionary spelling issues. Prepare a concise evidence table with language variety, source date, original form, gloss and phonetic or morphological annotation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
46. Lesson 46: Negation — Touati 2014 dissertation. Evaluate how text genre, regional contact, fieldwork methodology or historical spelling might alter the linguistic interpretation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
47. Lesson 47: Question forms — Guy 1972 northern Sakao grammar. Define a precise archival or speaker-led verification procedure where evidence is insufficient, rather than constructing an unattested native sentence. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
48. Lesson 48: Commands and directives — Port-Olry versus Hog Harbour. Locate an original-language witness and preserve its exact source spelling, named author or speaker and citation or recording locator. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
49. Lesson 49: Complex clauses — Nkep community identification. Compare what the source directly demonstrates with a typological hypothesis, and explain why the latter is not yet established. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
50. Lesson 50: Source-attested full clause — Guy 1974 comparison. Prepare a concise evidence table with language variety, source date, original form, gloss and phonetic or morphological annotation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.

Module 6: Original texts, translation and genre — Lessons 51–60

Documentary anchor: 1995 author’s phonological observations. Secondary historical focus: eleven or twelve vowels. Exact source notation and scholarly period are integral to the analysis.

51. Lesson 51: Select a primary text — 1995 author’s phonological observations. Locate an original-language witness and preserve its exact source spelling, named author or speaker and citation or recording locator. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
52. Lesson 52: Determine original source genre — eleven or twelve vowels. Compare what the source directly demonstrates with a typological hypothesis, and explain why the latter is not yet established. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
53. Lesson 53: Identify author or speaker — historical unstressed vowel loss. Prepare a concise evidence table with language variety, source date, original form, gloss and phonetic or morphological annotation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
54. Lesson 54: Copy accurate spelling — old missionary spelling issues. Evaluate how text genre, regional contact, fieldwork methodology or historical spelling might alter the linguistic interpretation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
55. Lesson 55: Word-level segmentation — Touati 2014 dissertation. Define a precise archival or speaker-led verification procedure where evidence is insufficient, rather than constructing an unattested native sentence. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
56. Lesson 56: Morphological gloss — Guy 1972 northern Sakao grammar. Locate an original-language witness and preserve its exact source spelling, named author or speaker and citation or recording locator. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
57. Lesson 57: Literal interpretation — Port-Olry versus Hog Harbour. Compare what the source directly demonstrates with a typological hypothesis, and explain why the latter is not yet established. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
58. Lesson 58: Contextual translation — Nkep community identification. Prepare a concise evidence table with language variety, source date, original form, gloss and phonetic or morphological annotation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
59. Lesson 59: Discourse pragmatics — Guy 1974 comparison. Evaluate how text genre, regional contact, fieldwork methodology or historical spelling might alter the linguistic interpretation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
60. Lesson 60: Annotated short primary passage — Guy 1977 vowel origins. Define a precise archival or speaker-led verification procedure where evidence is insufficient, rather than constructing an unattested native sentence. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.

Module 7: Historical comparison and language contact — Lessons 61–70

Documentary anchor: eleven or twelve vowels. Secondary historical focus: historical unstressed vowel loss. Exact source notation and scholarly period are integral to the analysis.

61. Lesson 61: Source-based language genealogy — eleven or twelve vowels. Prepare a concise evidence table with language variety, source date, original form, gloss and phonetic or morphological annotation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
62. Lesson 62: Cognate validation — historical unstressed vowel loss. Evaluate how text genre, regional contact, fieldwork methodology or historical spelling might alter the linguistic interpretation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
63. Lesson 63: Historical sound correspondences — old missionary spelling issues. Define a precise archival or speaker-led verification procedure where evidence is insufficient, rather than constructing an unattested native sentence. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
64. Lesson 64: Dialects and local varieties — Touati 2014 dissertation. Locate an original-language witness and preserve its exact source spelling, named author or speaker and citation or recording locator. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
65. Lesson 65: Regional multilingualism — Guy 1972 northern Sakao grammar. Compare what the source directly demonstrates with a typological hypothesis, and explain why the latter is not yet established. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
66. Lesson 66: Lexical diffusion — Port-Olry versus Hog Harbour. Prepare a concise evidence table with language variety, source date, original form, gloss and phonetic or morphological annotation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
67. Lesson 67: Grammar comparisons — Nkep community identification. Evaluate how text genre, regional contact, fieldwork methodology or historical spelling might alter the linguistic interpretation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
68. Lesson 68: Misleading textual registers — Guy 1974 comparison. Define a precise archival or speaker-led verification procedure where evidence is insufficient, rather than constructing an unattested native sentence. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
69. Lesson 69: Uncertain reconstruction — Guy 1977 vowel origins. Locate an original-language witness and preserve its exact source spelling, named author or speaker and citation or recording locator. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
70. Lesson 70: Critical comparative essay — 1995 author’s phonological observations. Compare what the source directly demonstrates with a typological hypothesis, and explain why the latter is not yet established. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.

Module 8: Community, literacy and documentation ethics — Lessons 71–80

Documentary anchor: historical unstressed vowel loss. Secondary historical focus: old missionary spelling issues. Exact source notation and scholarly period are integral to the analysis.

71. Lesson 71: Community language names — historical unstressed vowel loss. Define a precise archival or speaker-led verification procedure where evidence is insufficient, rather than constructing an unattested native sentence. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
72. Lesson 72: Historical knowledge holders — old missionary spelling issues. Locate an original-language witness and preserve its exact source spelling, named author or speaker and citation or recording locator. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
73. Lesson 73: Local environment and settlement — Touati 2014 dissertation. Compare what the source directly demonstrates with a typological hypothesis, and explain why the latter is not yet established. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
74. Lesson 74: Cultural and oral materials — Guy 1972 northern Sakao grammar. Prepare a concise evidence table with language variety, source date, original form, gloss and phonetic or morphological annotation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
75. Lesson 75: Historical literacy institutions — Port-Olry versus Hog Harbour. Evaluate how text genre, regional contact, fieldwork methodology or historical spelling might alter the linguistic interpretation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
76. Lesson 76: Language in education — Nkep community identification. Define a precise archival or speaker-led verification procedure where evidence is insufficient, rather than constructing an unattested native sentence. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
77. Lesson 77: Recording attribution — Guy 1974 comparison. Locate an original-language witness and preserve its exact source spelling, named author or speaker and citation or recording locator. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
78. Lesson 78: Rights and access — Guy 1977 vowel origins. Compare what the source directly demonstrates with a typological hypothesis, and explain why the latter is not yet established. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
79. Lesson 79: Community correction process — 1995 author’s phonological observations. Prepare a concise evidence table with language variety, source date, original form, gloss and phonetic or morphological annotation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
80. Lesson 80: Long-term archival access — eleven or twelve vowels. Evaluate how text genre, regional contact, fieldwork methodology or historical spelling might alter the linguistic interpretation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.

Module 9: Advanced documentary research portfolio — Lessons 81–90

Documentary anchor: old missionary spelling issues. Secondary historical focus: Touati 2014 dissertation. Exact source notation and scholarly period are integral to the analysis.

81. Lesson 81: Source-verified bibliography — old missionary spelling issues. Compare what the source directly demonstrates with a typological hypothesis, and explain why the latter is not yet established. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
82. Lesson 82: Orthography concordance — Touati 2014 dissertation. Prepare a concise evidence table with language variety, source date, original form, gloss and phonetic or morphological annotation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
83. Lesson 83: Sound evidence matrix — Guy 1972 northern Sakao grammar. Evaluate how text genre, regional contact, fieldwork methodology or historical spelling might alter the linguistic interpretation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
84. Lesson 84: Mini-dictionary — Port-Olry versus Hog Harbour. Define a precise archival or speaker-led verification procedure where evidence is insufficient, rather than constructing an unattested native sentence. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
85. Lesson 85: Possession or pronominal analysis — Nkep community identification. Locate an original-language witness and preserve its exact source spelling, named author or speaker and citation or recording locator. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
86. Lesson 86: Clause research exercise — Guy 1974 comparison. Compare what the source directly demonstrates with a typological hypothesis, and explain why the latter is not yet established. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
87. Lesson 87: Verified passage commentary — Guy 1977 vowel origins. Prepare a concise evidence table with language variety, source date, original form, gloss and phonetic or morphological annotation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
88. Lesson 88: Historical comparison — 1995 author’s phonological observations. Evaluate how text genre, regional contact, fieldwork methodology or historical spelling might alter the linguistic interpretation. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
89. Lesson 89: Documentation ethics record — eleven or twelve vowels. Define a precise archival or speaker-led verification procedure where evidence is insufficient, rather than constructing an unattested native sentence. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.
90. Lesson 90: Final ninety-objective dossier — historical unstressed vowel loss. Locate an original-language witness and preserve its exact source spelling, named author or speaker and citation or recording locator. Assessment: one independently explained cited observation, original-source verification and an explicit limitation.

10. Academic quality and editorial status

This encyclopedia profile and ninety individually titled documentary research assignments are original editorial and scholarly guidance. They are not ninety complete textbooks, audio lessons or fabricated native conversations. Claims unsupported by the named source are treated as verification tasks. Expanded source texts require community or publisher permission when applicable.