Assertion: river otter | /r/CapableOf | become extinct
Facets:
value: in most places
type: LOCATION
value: by the 1950’s
type: TEMPORAL
Source sentences:
text: Except, possibly, for a few small remnant populations in isolated streams or ponds, the Southwest river otter had totally disappeared, becoming extinct, by the 1950’s.
text: Once found all over North America, they have become rare or extinct in most places, although flourishing in some locations.