Assertion: sea slug's food | /r/HasProperty | the algae
Facets:
value: primarily
type: DEGREE
Source sentences:
text: However, other species in the genus, such as Elysia viridis, are quite cryptic, resembling their food (primarily the algae Codium, Bryopsis and Halimeda ) so much that most people would miss them even after they were told that there were sea slugs in the aquarium!