Premise: "Boy jumping over steps and smiling."
Hypothesis: "Boy is falling down steps."
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
A boy jumping over steps and smiling can't be falling down the steps at the same exact moment. The answer is no.