Assertion: guinea pig's hay | /r/HasProperty | staple
Facets:
value: in the diet
type: LOCATION
Source sentences:
text: Hay should be a staple in the diet and a fresh supply available at all times.
text: Hay is, of course, a staple food and foraging item you can use anytime.
text: Hay is the staple part of their diet which they will eat most of the time.