Premise: "A young man watches as a jenga tower tumbles."\nHypothesis: "A man watches his friend making a jenga tower fall."\nDo we know that the hypothesis entailed by the premise?
Think hard. Detailed solution:
it is not possible to tell
Watching a Jenga tower tumble doesn't imply that his friend made it happen.

.

Therefore, the answer is it is not possible to tell