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: You haven't got it. Sentence 2: The person being spoken to has it.

Ex Output:
yes


Ex Input:
Sentence 1: Before 1966, we had a motley collection of teen magazines and fan club publications. Sentence 2: Before 1966 there were no magazines or publications.

Ex Output:
yes


Ex Input:
Sentence 1: Of course, even scientific polls are subject to error, and not just to the standard margin of error that is due to assumed errors in sample selection. Sentence 2: Scientific polls are usually wrong.

Ex Output:

no