Assertion: blue whale's fin | /r/HasProperty | triangular
Facets:
value: in mature males
type: OTHER
Source sentences:
text: In mature males, the dorsal fin is tall and triangular and may reach a height of 1.8 m (6 ft).
text: Other whales have dorsal fins on their back; the triangular protrusion that often pops out over the sea surface.
text: her dorsal fin is smaller and curves, while the male dorsal fins is rather triangular and straight.