Assertion: dolphin | /r/CapableOf | open the blowhole
Facets:
value: to get air
type: PURPOSE
value: to start exhalation
type: PURPOSE
Source sentences:
text: Just before reaching the water surface, dolphins contract their muscular flaps and open the blowhole to start exhalation.
text: The dolphin opens its blowhole and begins to exhale just before reaching the surface of the water.
text: Dolphins are voluntary breathers, who must deliberately surface and open their blowholes to get air.
text: To open the blowhole, the dolphin contracts the muscular flap.