Assertion: pigeon's tail | /r/HasProperty | powered by large breast muscles
Facets:
Source sentences:
text: According to Smithsonian, “The head and neck were small; the tail long and wedge-shaped, and the wings, long and pointed, were powered by large breast muscles that gave the capability for prolonged flight.
text: The head and neck were small; the tail long and wedge-shaped, and the wings, long and pointed, were powered by large breast muscles that gave the-capability for prolonged flight.