Assertion: cockatoo's leg | /r/CapableOf | use his knee
Facets:
value: a lot to kneel
type: PURPOSE
Source sentences:
text: He has never really gained the use of his legs at all, one leg is continually tucked up tight against his tummy and the other leg he uses to rest on his knee, using his knee a lot to kneel and sit in his trolley inside or cage on the verandah.