Assertion: moray eel | /r/HasProperty | recruited by grouper
Facets:
value: in order to use their ability
type: PURPOSE
Source sentences:
text: Morays are recruited by groupers in order to use their ability to enter small crevices to flush out prey such as crustaceans, sea urchins, and mollusks; which are pretty much the only prey that zebra morays feed on.