[3] Linguist Jim Kakumasu observed in 1968 that the number of deaf people in the community was 7 out of a population of about 500.
[4][5] This relatively high ratio of deafness (1 in 75) led to both hearing and deaf members of the community using the language, and most hearing children grow up bilingual in the spoken and signed languages.
This may represent a world view of the past as something visible, and the future as unknowable.
Conditional and imperative grammatical moods are marked by non-manual features such as a widening of the eyes and tensing of facial muscles.
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