Assertion: owl's diet | /r/HasProperty | studied
Facets:
value: much
type: DEGREE
Source sentences:
text: The diet of the barn owl has been much studied; the items consumed can be ascertained from identifying the prey fragments in the pellets of indigestible matter that the bird regurgitates.
text: While the diet of the barn owl has been studied, other areas like breeding success are not well known.