Assertion: wrasse | /r/Desires | the mucus of their client fish
Facets:
value: to parasites,8
type: TRANSITIVE-OBJECT
Source sentences:
text: Studies have been done showing that, when given a choice, cleaner wrasses prefer the mucus of their client fish to parasites,8 but will “feed selectively against their preference (which corresponds to cooperatively eating client fish ectoparasites).”9