Assertion: heron's food | /r/CapableOf | eat algae
Facets:
value: mainly
type: DEGREE
Source sentences:
text: Food Eats mainly aquatic plants including algae, duckweed, eelgrass, wild rice, sedges, hydrilla, wild celery, waterlilies, cattails, water milfoil; when on land they also pick at terrestrial plants and sometimes eat grains or leaves of oak, elm, and cypress trees.