Assertion: river dolphin's fin | /r/HasProperty | short
Facets:
value: in height
type: OTHER
value: very long
type: DEGREE
Source sentences:
text: The flukes are broad and triangular, and the dorsal fin, which is keel-shaped, is short in height but very long, extending from the middle of the body to the caudal region.
text: They also have a somewhat reduced dorsal fin, which is short and extremely wide, giving it an appearance similar to a boat keel.
text: The dorsal fin is short and keel shaped appearing like a hump instead of a fin.