Assertion: river otter | /r/CapableOf | eat amphibian
Facets:
value: mainly
type: DEGREE
Source sentences:
text: North American river otters eat mainly aquatic organisms such as amphibians, fish, turtles, crayfish, crabs, and other invertebrates.
text: They have been known to feed on mollusks, aquatic insects, amphibians, reptiles, birds and small mammals.
text: River otters primarily prey on fish, crayfish, turtles and amphibians, and rarely birds.