Assertion: oil spill | /r/HasProperty | common
Facets:
value: on the gulf coast
type: LOCATION
value: relatively
type: DEGREE
Source sentences:
text: However, terrestrial oil spills are also common but are less hazardous than those occurring in the sea.
text: Minor oil spills are relatively common on the Gulf Coast, but this one has biologists, wildlife agencies, conservation groups and fishermen particularly concerned.