Assertion: beaver | /r/CapableOf | create wetland
Facets:
value: by damming streams
type: MANNER
Source sentences:
text: Beavers’ activity helps keep stream beds healthy and in good repair, and beavers are a keystone species in an ecosystem because they create wetlands that are used by many other species.
text: By damming streams and forming shallow ponds, beavers create wetlands.