Assertion: bison's number | /r/CapableOf | drop to 700 herds
Facets:
value: by 1992
type: TEMPORAL
Source sentences:
text: By 1992, this number had dropped to 700 herds and the number of affected, domestic herds has declined to single digits since then.
text: By 1992, this number had dropped to 700 herds, and as of June 30, 2000, there were only 6 known affected herds remaining in the entire United States.