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:  He considered, and then snapped his fingers. Sentence 2: He made some noise with his fingers after he thought about it. 

Ex Output:
yes


Ex Input:
Sentence 1: for how many calls Sentence 2: Did you make a lot of calls?

Ex Output:
no


Ex Input:
Sentence 1: Non-COPD deaths for populations aged 65 and older are valued at $1. Sentence 2: Non-COPD deaths for the elderly are valued at $0.

Ex Output:

yes