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: Well, any technology can be used for good or ill. Sentence 2: That technology cannot be used for evil.
Example Output: yes

Example Input: Sentence 1: They were justifiably concerned, advocates say. Sentence 2: The concern was quite normal due to the case.
Example Output: no

Example Input: Sentence 1: Apply Y.A." 27 Chapter 4 Who Is Jane Finn?  Sentence 2: There was no chapter about Jane Finn.
Example Output:
yes