Assertion: glider's flight | /r/CapableOf | evolve in pterosaur
Facets:
value: unambiguously
type: MANNER
Source sentences:
text: Flight has evolved at least four times, in the insects, pterosaurs, birds, and bats.
text: Powered flight has evolved unambiguously only four times—birds, bats, pterosaurs, and insects.
text: Powered flight has evolved only four times: first in the insects, then in pterosaurs, next in birds, and last in bats.