Premise: "A boy in a helmet is riding his tricycle down a grassy gravel path beside a fence."
Hypothesis: "A boy is riding a tricycle down a path."
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
If a boy is riding his tricycle then he is riding a tricycle. The answer is yes.