Assertion: yak's number | /r/CapableOf | remain alive
Facets:
value: in north america
type: LOCATION
Source sentences:
text: During the population bottleneck, after the great slaughter of American bison during the 1800s, the number of bison remaining alive in North America declined to as low as 541.
text: During the population bottleneck, after the great slaughter of American bison during the 19th century, the number of bison remaining alive in North America declined to as low as 541.