Leo: Premise: "A brunette man is welding a stair rail."\nBased on this premise, can we conclude that the hypothesis "A man is working on a stair rail." is true?\nOptions:\n- yes\n- it is not possible to tell\n- no
Mei: OK, So, let's think first...
Me:
User
A man can weld a stair rail without working on a stair rail.
Thus, the answer is it is not possible to tell.
Assistant