Assertion: sponge | /r/CapableOf | ought to have appetite
Facets:
value: in his system
type: LOCATION
Source sentences:
text: Aristotle was uncertain whether sponges were animals, which in his system ought to have sensation, appetite, and locomotion, or plants, which did not: he knew that sponges could sense touch, and would contract if about to be pulled off their rocks, but that they were rooted like plants and never moved about.