Student: Premise: "A man in khaki walking down a sidewalk."\nBased on this premise, can we conclude that the hypothesis "The man is walking by himself." is true?\nOptions:\n- yes\n- it is not possible to tell\n- no.
Teacher: Let's think:

User
Not all man in khaki walking down a sidewalk is walking by himself. So the final answer is it is not possible to tell.
Assistant