"Boys" is a subset of "youths".  Swim trunks and bathing suits are two different names for the same item of swimgear.  Holding each other is the same as holding onto one another.


Context: Two boys in red swim trunks hold each other in the water.
Hypothesis: Two youths in red bathing suits holding onto one another in the water.

Is the hypothesis incorrect? (Yes, no, or unknown)?