Assertion: fin whale's fin | /r/HasProperty | long
Facets:
Source sentences:
text: The pectoral fins are long, the tail fin is large, therefore it moves and balances in the water much faster.
text: In a Megalodon with a total length of 52 feet (15.9 metres), the first dorsal fin would be over 5.5 feet (1.7 metres) tall, the pectoral fins would each be over 10 feet (3.1 metres) long, and the tail would be over 12 feet (3.8 metres) tall.