Assertion: common whelk | /r/HasProperty | pest
Facets:
value: for fishermen
type: TRANSITIVE-OBJECT
value: sometimes
type: DEGREE
Source sentences:
text: The common whelk is sometimes thought to be pest for fishermen as it attacks fish that are caught in nets by making a hole in the fishes skin with its rasp tongue and thereafter eating the meat with its long siphon.