Assertion: humpback whale | /r/NotCapableOf | breathe
Facets:
value: because of the need for air
type: CAUSE
Source sentences:
text: While most people may think of singing involving the use of vocal cords and the mouth, humpback whales do not have vocal cords and are unable to breathe through their mouth so they do not produce these songs the way most animals are known to.
text: Since the humpback is a mammal, they are unable to breathe underwater because of the need for air.