Assertion: black footed ferret | /r/HasProperty | reintroduced on the reservation
Facets:
value: in 1997
type: TEMPORAL
Source sentences:
text: Black-footed ferrets were first reintroduced on the Reservation in 1997, but an outbreak of sylvatic plague swept through the release sites in 1999 and decimated populations of ferrets and prairie dogs, the ferret’s main food item.