Assertion: beaver's activity | /r/HasProperty | credited to the accumulation of salicin
Facets:
value: in the beaver's diet
type: LOCATION
value: from willow trees
type: LOCATION
Source sentences:
text: The activity of castoreum has been credited to the accumulation of salicin from willow trees in the beaver's diet, which is transformed to salicylic acid and has an action very similar to aspirin.