Assertion: acetaldehyde's effect | /r/HasProperty | the death of fish
Facets:
value: at the mouth of the river
type: LOCATION
Source sentences:
text: The immediate effect was the death of fish at the mouth of the river, and from that point on, new Minamata disease victims began to appear in other fishing villages up and down the coast of the Shiranui Sea, as the pollution spread over an even greater area.