Assertion: whale | /r/CapableOf | use its tail
Facets:
value: to make loud
type: PURPOSE
Source sentences:
text: A whale uses its tail in an up-and-down motion to swim, whereas a fish uses a back-and-forth motion with its tail.
text: Whales also use their tails and fins to make loud slapping noises on the surface of the water to communicate nonverbally.