Assertion: bottlenose dolphin's blowhole | /r/AtLocation | dorsal surface of the head
Facets:
Source sentences:
text: The bottlenose dolphin has a single blowhole located on the dorsal surface of the head consisting of a hole and a muscular flap.
text: The bottlenose dolphin has a single blowhole located on the dorsal surface of the head consisting of a hole and a muscular flap.
text: A single blowhole, located on the dorsal surface of the head, is covered by a muscular flap.