Given the task definition and input, reply with output. In this task you are given a statement and an explanation giving you further knowledge about an entity in the statement. You must judge whether the statement is true or false based on the explanation. Label an instance as "True" if the explanation confirms the statement or doesn't disprove it. Label an instance as "False" if the explanation disproves the statement. The statement and explanation are separated by a newline character.

Shark, known to mariners as sea dogs, contains five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head.
Several shark species termed "dogfish," or the porbeagle state why Shark is known as sea dogs.
True