Student: Premise: "A father and infant son enjoying themselves at a pool."
Hypothesis: "A father and son play in a pool."
Do we know that the hypothesis entailed by the premise?.
Teacher: Let's think:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
People can enjoy themselves in a pool without necessarily engaging in play. So the final answer is it is not possible to tell.