Assertion: mockingbird's song | /r/HasProperty | own melodious
Facets:
Source sentences:
text: Mockingbirds have extraordinary vocal abilities - they can sing up to 200 songs, including their own melodious songs, the songs of other birds, insect and amphibian sounds, even an occasional mechanical noise.
text: Mockingbirds have extraordinary vocal abilities - they can sing up to 200 songs, including their own melodious songs, the songs of other birds, insect and amphibian sounds, even an occasional mechanical noise.