Premise: "Two kids with helmets playing with nerf swords while one looks on drinking from a plastic cup."
Hypothesis: "1 kid is watching."
Do we know that the hypothesis entailed by the premise?
Let's solve step-by-step:

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
The kid is watching because he is drinking from a plastic cup. The answer is yes.