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'.

Input: Consider Input: The young man is trying to balance on the train tracks. <sep> A young man is trying to balance.

Output: yes


Input: Consider Input: I am squatting on a dock, looking into a lake. <sep> I am near a lake.

Output: yes


Input: Consider Input: A singer wearing a leather jacket performs on stage with dramatic lighting behind him. <sep> a singer is on american idol


Output: no