Assertion: porcupine's foot | /r/HasAspect | four toes
Facets:
Source sentences:
text: Their front feet have four toes and their back feet have five.
text: The hind feet have only four toes, owing to the suppression of the first, in place of which they have a fleshy pad on the inner side of the foot; between this pad and the toes, branches and other objects can be firmly grasped as with a hand.