Assertion: walrus | /r/CapableOf | sleep
Facets:
Source sentences:
text: Walruses dig their tusks into ice floes to help them haul their enormous bodies out of the water but also anchor their tusks into the ice so they are able to sleep whilst their bodies remain submerged beneath the waves.
text: One of the most amazing things about the walrus is that they are able to sleep while they are swimming!