Leo: Can we conclude from "A man and a woman stand at a street vendor's food stand." that "A man and his son are at the food stand."?\nOptions:\n- yes\n- no\n- it is not possible to tell
Mei: OK, So, let's think first...
Me:
User
Either a man and woman are at the stand or a man and his son are.
Thus, the answer is no.
Assistant