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: Rennie on his way to Johnny Shannon ... What had Fenner said-"li'l cub ... warn't more 'n four."Drew Rennie at four hard to sort out one very early memory from another. Sentence 2: Rennie knew Johnny Shannon.
Example Output: no

Example Input: Sentence 1: I mean, is nothing holy? Sentence 2: I mean, is nothing holy because of that statement?
Example Output: no

Example Input: Sentence 1: Yes, that is so. I felt an inexpressible lightening of the heart. Sentence 2: My heart became heavier.
Example Output:
yes