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: What time was it when she first called you? Sentence 2: She didn't call.

Ex Output:
yes


Ex Input:
Sentence 1: Six million Poles lost their lives during World War II, and the Jewish population was decimated, reduced from 3 million to just a couple thousand. Sentence 2: During World War II, six million Poles lost their lives, and the Jewish population was decimated, reduced from 3 million to just a couple thousand.

Ex Output:
yes


Ex Input:
Sentence 1: I don't quite know, said Tuppence meditatively. Sentence 2: I don't know, said Tuppence 

Ex Output:

yes