Assertion: aardvark | /r/CapableOf | curl into tight ball
Facets:
Source sentences:
text: When aardvarks sleep, they block the entrance to their burrow, leaving only a very small opening at the top, and curl into a tight ball.
text: The aardvark is a solitary mammal that spends its days sleeping, curled up in a tight ball in an underground burrow that has been dug with its powerful claws.