Assertion: dolphin's fin | /r/HasProperty | triangular
Facets:
value: almost
type: DEGREE
Source sentences:
text: The common dolphin has a dorsal fin that is almost triangular, in addition to small flippers and flukes.
text: Its dorsal fin is low and triangular in shape and resembles a light-colored flag when the dolphin swims just below the surface of the murky Yangtze River, hence the name "white-flag" dolphin.