Assertion: plesiosaur's flipper | /r/CapableOf | move with front flippers
Facets:
value: maybe
type: MANNER
value: occasionally
type: DEGREE
Source sentences:
text: Maybe the rear flippers moved together with the front flippers occasionally to provide an unsustainable burst of thrust, to lunge at a prey, for example,” said Turk’s co-author Adam Smith.