Assertion: spill's effect | /r/HasProperty | apparent
Facets:
value: after the oil spill
type: TEMPORAL
Source sentences:
text: Three years after the oil spill, the residual effects were still apparent, with tar balls still found on the Mississippi coast, as well as an oil sheen along a coastal marsh, and erosion on an island in Barataria Bay sped up by the death of mangrove trees and marsh grass.