Use reasoning to lead to the answer of the following question:
Premise: "Four boys jumping into a swimming pool."\nHypothesis: "The boys are having fun swimming during summer break."\nDo we know that the hypothesis entailed by the premise?

it is not possible to tell
Boys can jump into a swimming pool and not have fun and can also jump into a swimming pool during any season of the year.

.

Therefore, the answer is it is not possible to tell