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: While a cost-per-case analysis is limited in that it only addresses quantity, and not quality of services, it does provide some useful quantitative information. Sentence 2: Only quantity is examined, not quality.

Ex Output:
yes


Ex Input:
Sentence 1: yeah i've enjoyed them so it doesn't really matter Sentence 2: I hated them, so it doesn't matter.

Ex Output:
yes


Ex Input:
Sentence 1: Then, in 1966, Crawdaddy magazine came out of Boston and in 1967 Rolling Stone got its start in San Francisco. Sentence 2: Then in 1966 and 67, Crawdaddy and Rolling Stone emerged.

Ex Output:

yes