Given the task definition, example input & output, solve the new input case.
Given Sentence 1 and Sentence 2, indicate your answer as yes when the two sentences clearly agree or clearly disagree with each other. If the relationship cannot be determined, answer with 'no'.
Example: A boy in a blue jacket rides a skateboard down the street. <sep> A blue jacketed boy is standing in football field.
Output: yes
This answer is yes because the boy can either be riding or standing but not both. Since the statements disagree, the answer is yes.

New input case for you: Two men stand on stairs with an assortment of chairs and a woven basket in the foreground. <sep> The men are brothers.
Output:
no