Assertion: sea slug | /r/CapableOf | feed on gorgonian
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: They are predatory animals that usually feed on a specific food source, such as anemones, gorgonians, hydroids, tunicates, or sponges, and they are such specialized feeders that they may only feed upon one species of a particular group of animals.