Assertion: monkey's tail | /r/ObjectUse | used for balance
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: These tails are used for balance which is why they are so long.
text: Arms and tail are used for balancing.
text: The narrow tail, usually used for balance, is bald except for a tuft of hair at the end, and is about twice the body length.