Assertion: woolly monkey's tail | /r/HasProperty | useful
Facets:
value: for helping the monkeys balance
type: PURPOSE
value: especially
type: DEGREE
Source sentences:
text: The long tail is especially useful because, unlike many other monkeys, spider monkeys do not have an opposable thumb, meaning they are not very adept with their hands.
text: Of course, they cannot use them to wrap around tree branches or swing from limbs, but the tails are still useful for helping the monkeys balance in the trees.