Assertion: herring gull | /r/HasProperty | useful
Facets:
value: very
type: DEGREE
value: for keeping the beaches
type: PURPOSE
Source sentences:
text: Being a scavenger, the herring gull is very useful for keeping the beaches and the surrounding environment clean.
text: Herring Gulls can be quite useful, keeping our beaches clean by eating dead fish and other garbage and leading fishing boats to schools of herring, one of their favourite foods—