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: Philosophers and theologians try to answer these questions, but smart politicians rewrite them. Sentence 2: Philosophers try to answer questions.

Ex Output:
yes


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

Ex Output:
yes


Ex Input:
Sentence 1: Although we attempted to be as thorough as possible within the scope of our study, we recognize that more work in this area remains to be done, including a more in-depth study of individual practices. Sentence 2: More work is not necessary. 

Ex Output:

yes