Assertion: penguin's bird | /r/HasProperty | flightless
Facets:
Source sentences:
text: Penguin is an aquatic and flightless bird that has wings more like fins which help them to swim.
text: Penguins are a flightless bird that live in Antarctica, but what fun facts do you know about penguins?
text: Penguins are the flightless birds that are associated with the family of Spheniscidae.
text: Penguins are the flightless birds which commonly found in Polar Regions like Antarctica.