Assertion: bison's diet | /r/MadeOf | sedge
Facets:
value: in the summer
type: TEMPORAL
value: mainly
type: DEGREE
Source sentences:
text: Their diet consists mainly of various grasses, sedges, and forbs including vetch, a favored summer food found on gravel bars.
text: In the summer their diet consists of grasses, sedges, and herbs and 13% trees and shrubs.