Assertion: sea lion's number | /r/HasProperty | affected by the exxon valdez oil spill
Facets:
value: in 1989
type: TEMPORAL
value: in prince william sound
type: LOCATION
Source sentences:
text: A number of Steller sea lion haulout and rookery sites were affected by the Exxon Valdez oil spill in Prince William Sound, Alaska, in 1989 but it is unknown whether the spill impacted the population.