Assertion: sea slug | /r/HasProperty | imported
Facets:
value: so often
type: DEGREE
Source sentences:
text: I was pleased to see that the two species of sea slugs in the aquarium happened to be 2 of the more likely sea slugs (sea hares and lettuce sea slugs) to survive in captivity, and there were none of the more colorful and infinitely more difficult nudibranchs that are so often imported.