Assertion: killer whale's fin | /r/CapableOf | collapse after exposure
Facets:
value: in 1989
type: TEMPORAL
value: to oil
type: CAUSE
value: during the exxon valdez oil spill
type: TEMPORAL
Source sentences:
text: In 1989, the dorsal fins of two male killer whales collapsed after exposure to oil during the Exxon Valdez oil spill—