In this task, you're given a pair of sentences, sentence 1 and sentence 2. Your job is to determine if the two sentences clearly agree/disagree with each other, or if this can't be determined. Indicate your answer as yes or no respectively.

Input: Consider Input: Sentence 1: I believe I've only seen your hand shake once. Sentence 2: There is only one time I have seen your hand shake.

Output: yes

Input: Consider Input: Sentence 1: Becker, Howard S. Problems of Inference and Proof in Participant Observation. Sentence 2: Problems of Inference and Proof in Participant Observation is related to Howard Becker.

Output: yes

Input: Consider Input: Sentence 1: On the other hand, they are clearly at fault about many of its provisions. Sentence 2: Problems arose because of their doing.
Output: no