Assertion: pigeon | /r/HasProperty | persecuted by man
Facets:
value: in the last 50 years
type: TEMPORAL
value: to the point
type: OTHER
Source sentences:
text: In the last 50 years the pigeon has been persecuted by man to the point where virtually any other species would have disappeared altogether, but unlike the passenger pigeon, which was wiped out in North America in the early 20th century as a result of over hunting, the feral pigeon continues to thrive.