Creatively image a question and justification for this answer: it is not possible to tell
The question is: Premise: "A man is doing a wheelie on a mountain bike."
Hypothesis: "A man does a wheelie while biking down a mountain."
Do we know that the hypothesis entailed by the premise?
Step-by-step reasoning process: A man doing a wheelie on a mountain bike is not necessarily biking down a mountain.