Assertion: porcupine | /r/CapableOf | utilize rock caves
Facets:
Source sentences:
text: Porcupines utilize natural cavities, such as rock caves, hollow logs and trees, or even the thicker vegetation in a tree as dens.
text: Porcupines utilize natural cavities, such as rock caves, hollow logs and trees, or even the thicker vegetation in a tree as dens.