Assertion: porpoise's fin | /r/HasProperty | round
Facets:
Source sentences:
text: Their dorsal fin is triangular, while their pectoral fins are small and round.
text: Their dorsal fin is large and rounded, and they have spade-shaped teeth.
text: It has a small body with an unusually tall, triangular dorsal fin, a rounded head, and no distinguished beak.
text: ’s fin is just a rounded triangle.