Assertion: passenger pigeon | /r/HasProperty | descended
Facets:
value: from zenaida pigeons
type: OTHER
value: supposedly
type: OTHER
Source sentences:
text: The passenger pigeon was supposedly descended from Zenaida pigeons that had adapted to the woodlands on the plains of central North America.
text: The passenger pigeon was physically adapted for speed, endurance, and maneuverability in flight, and has been described as having a streamlined version of the typical pigeon shape, such as that of the generalized rock dove (Columba livia).