Assertion: river gorilla | /r/AtLocation | isolated 290 square mile area
Facets:
value: in nigeria
type: LOCATION
value: in cameroon
type: LOCATION
Source sentences:
text: Western gorillas, including western lowland and cross river gorillas, are found in west central Africa, between the Congo and Niger rivers, with cross river gorillas only found in an isolated 290 square mile area in Nigeria and Cameroon.