Assertion: bison bison bison | /r/CapableOf | decrease in late 1700s
Facets:
value: because of heavy hunting with rifles
type: CAUSE
value: sharply
type: DEGREE
value: because of severe winters
type: CAUSE
Source sentences:
text: The American Bison (Bison bison) was found throughout the prairie in the early 1700s, but decreased sharply in the late 1700s because of severe winters and heavy hunting with rifles.