Assertion: gerbil | /r/HasProperty | natural burrowers
Facets:
Source sentences:
text: Gerbils are natural burrowers, and this instinct can also be found in pet gerbils.
text: Gerbils are natural diggers, chewers and adventurers.
text: Gerbils are natural burrowing animals
text: Gerbils are natural burrowers, so they need a much deeper habitat than hamsters.