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: He must parry opponents' attacks better. Sentence 2: He hadn't practiced parrying techniques recently.
Example Output: no

Example Input: Sentence 1: Then his mind adjusted to the new facts, dismissing his past worries. Sentence 2: He felt completely relieved.
Example Output: no

Example Input: Sentence 1: The corridor was silent. Sentence 2: There was no sound in the hallway.
Example Output:
yes