Assertion: linguist's knowledge | /r/HasProperty | carried in local language
Facets:
Source sentences:
text: The film addresses issues including the spread of major global languages and how they contribute to language extinction; political and social reasons that some languages have been repressed; and reasons that language revitalization and language documentation are important (including both maintaining a scientific record of that language, and preserving unique local knowledge and history that is only carried in the local language).