Assertion: grizzly bear | /r/CapableOf | roam north america
Facets:
value: in the past
type: TEMPORAL
Source sentences:
text: In the past, approximately 50,000 grizzly bears roamed North America.
text: Biologists estimate that 500 years ago, about 100,000 grizzly bears roamed North America, ranging from the wide Alaskan tundra to the Sierra Madre peaks of Mexico.