Assertion: brown pelican | /r/HasProperty | put on endangered species list
Facets:
value: because of ddt
type: CAUSE
value: because of other pesticides
type: CAUSE
value: in the 1970s
type: TEMPORAL
Source sentences:
text: In the 1970s, brown pelicans were put on the endangered species list, their numbers nose-diving because of DDT and other pesticides.