Premise: "Two men shaking hands and smiling at the camera."\nHypothesis: "While a third man stands behind them."\nIs the hypothesis entailed by the premise?\nOptions:\n- yes\n- it is not possible to tell\n- no
Let's think step by step.
it is not possible to tell
A third man standing behind two men while looking at a camera.

.

Therefore, the answer is it is not possible to tell