Premise: "A mountain biker catching some after taking off a ramp on a trail."
Hypothesis: "The mountain biker is in a grocery store."
Do we know that the hypothesis entailed by the premise? Stream of thoughts:

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 biker wouldn't be in the grocery store if he was taking an off ramp on a trail.
Therefore, the answer is no.