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: But it should be done, at once!" He then made a very careful examination of the drawers of the wash-stand.  Sentence 2: He carefully examined the drawers.

Ex Output:
yes


Ex Input:
Sentence 1: okay well good luck to the Rangers this season  see if they can pull one out Sentence 2: Good luck to the Rangers this season; let's see if they win.

Ex Output:
yes


Ex Input:
Sentence 1: George W. Bush takes both covers. Sentence 2: Mr. Both has additional covers.

Ex Output:

no