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: oh that's quite reasonable Sentence 2: That's a good estimate for the area, is there a discount on it?

Ex Output:
no


Ex Input:
Sentence 1: Beyond Limin, Thasos is mountainous and covered with pine forest. Sentence 2: Thasos is sparsely populated due to mountains and forests.

Ex Output:
no


Ex Input:
Sentence 1: Spain's Arab rulers exploited this disunity to sweep north across Gaul, controlling Langue?­doc, Dordogne, and a large part of Provence, before being defeated at Poitiers in 732 by the army of Charles Martel. Sentence 2: Spain's Arab rulers were defeated by Charles Martel's army.

Ex Output:

yes