Assertion: dolphin's fin | /r/ObjectUse | used for steering
Facets:
value: mostly
type: DEGREE
Source sentences:
text: The two fins on each side of the dolphin are called pectoral fins and are mostly used for steering.
text: Their powerful, horizontal flukes, or tail fins, drive them through or out of the water, while their forefins and dorsal fin are used for steering.
text: Their powerful, horizontal flukes, or tail fins, drive them through or out of the water, while their forefins and dorsal fin are used for steering.
text: Their powerful, horizontal flukes, or tail fins, drive them through or out of the water, while their forefins and dorsal fin are used for steering.