Assertion: pelican's population | /r/HasProperty | low
Facets:
value: alarmingly
type: DEGREE
value: by the mid-twentieth century
type: TEMPORAL
value: due to hunting
type: CAUSE
value: in the 1960s
type: TEMPORAL
Source sentences:
text: This is particularly wonderful because in the 1960s their populations were dangerously low.
text: Their populations were alarmingly low by the mid-twentieth century due to hunting, chemical pesticides such as DDT and habitat loss.