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: The crowds thinned and the tent city rose around them, mostly empty at this time in the morning. Sentence 2: It was really busy that morning.

Ex Output:
yes


Ex Input:
Sentence 1: In the following centuries sand swept through the area burying many of the buildings. Sentence 2: Over time, sand swept through the region and buries the buildings.

Ex Output:
yes


Ex Input:
Sentence 1: It would have been kinder for you not to know, but it is the truth.  "And jewels enough to buy an empire on a corpse," Hanson accused. Sentence 2: Knowing the truth is worth it.

Ex Output:

no