Assertion: keel | /r/CapableOf | allow more power
Facets:
value: for flight
type: PURPOSE
Source sentences:
text: The keel is the "breast bone"....flattened and elongated in birds to give a place for the wing muscles to attach...allowing more power for flight.
text: The keel is the "breast bone"....flattened and elongated in birds to give a place for the wing muscles to attach...allowing more power for flight.