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: I said right out: 'You're an old woman, Emily, and there's no fool like an old fool.  Sentence 2: I did not like Emily because she was old and foolish.  
Example Output: no

Example Input: Sentence 1: Now, if we perform the same exercise using the actual FY 1998 First-Class and Standard A volume figures of 101. Sentence 2: We can do the same thing using the First-Class and Standard A numbers for rural routes.
Example Output: no

Example Input: Sentence 1: There was no need to introduce it.  Sentence 2: It's introduction was not necessary.
Example Output:
yes