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: At the same time, there are other key assumptions that EPA adopted to facilitate the evaluation of the four scenarios. Sentence 2: The EPA assumed nothing; all its operations are based in science.

Ex Output:
yes


Ex Input:
Sentence 1: One rather formidable group of mailers whose members will benefit mightily from the Commission's recommendations, the periodicals mailers, pointed out in a press statement that the overall average increase for First-Class mail was much smaller than the average increase for mail their members send. Sentence 2: Periodicals mailers never say a word in the press statements.

Ex Output:
yes


Ex Input:
Sentence 1: The goal is $100,000. Sentence 2: The goal is $50,000.

Ex Output:

yes