Assertion: platypus | /r/CapableOf | walk on its knuckles
Facets:
value: in order to protect the webbing
type: PURPOSE
value: secondly
type: MANNER
Source sentences:
text: Secondly, because its front feet are fully webbed, the platypus walks on its knuckles in order to protect the webbing and to prevent them from getting entangled in obstacles as it walks.