Assertion: woodpecker's song | /r/CapableOf | alert ornithologist
Facets:
value: to the presence of the birds
type: TRANSITIVE-OBJECT
Source sentences:
text: The piculets either have a song consisting of a long descending trill, or a descending series of two to six (sometimes more) individual notes, and this song alerts ornithologists to the presence of the birds, as they are easily overlooked.