With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: The medullary tissue found in the Tyrannosaurus will be used as a basis to determine the Allosaurus ' sex .
text_B: However , with the confirmation of medullary tissue indicating gender in a specimen of Tyrannosaurus , it may be possible to ascertain whether or not the Allosaurus in question was indeed female.  discovery of a juvenile specimen with a nearly complete hindlimb shows that the legs were relatively longer in juveniles , and the lower segments of the leg ( shin and foot ) were relatively longer than the thigh .
SUPPORTS.