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 input: A boy in a blue jacket rides a skateboard down the street. <sep> A blue jacketed boy is standing in football field.
Example output: yes
Example explanation: This answer is yes because the boy can either be riding or standing but not both. Since the statements disagree, the answer is yes.
Q: A man wearing a white t-shirt and shorts is rock climbing with other people wearing blue hard hats. <sep> A man in a black t-shirt and shorts is hiking up a mountain.
A:
yes