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.

Example Input: Sentence 1: We'll keep him close-in the water corral. Sentence 2: We will not allow him anywhere near the water corral.
Example Output: yes

Example Input: Sentence 1: I will be back as soon as I can."  Sentence 2: I will return as soon as possible.
Example Output: yes

Example Input: Sentence 1: I have no authority to go through these papers.  Sentence 2: I don't have the authority to look at the papers.
Example Output:
yes