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.

Ex Input:
Sentence 1: 'Of course. Sentence 2: It was obviously so.

Ex Output:
yes


Ex 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.

Ex Output:
no


Ex Input:
Sentence 1: It is hard to see how. Sentence 2: It is easy to see how.

Ex Output:

yes