Assertion: tone | /r/HasProperty | crucial
Facets:
value: with relatively little lexical use
type: OTHER
value: in the niger–congo family
type: LOCATION
value: in many african languages
type: LOCATION
value: to the grammar
type: OTHER
Source sentences:
text: However, in many African languages, especially in the Niger–Congo family, tone is crucial to the grammar, with relatively little lexical use.