Assertion: opossum's thumb | /r/HasProperty | useful
Facets:
value: extremely
type: DEGREE
Source sentences:
text: As well as a prehensile tail, they have very sharp claws on all of their toes except the large toes on their hind feet which are opposable, like a thumb, which is extremely useful as it enables the Opossum to grasps things like tree branches.