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: 30% is a decrease in concentration or deposition compared to current conditions (an improvement) Sentence 2: There has been a decrease compared to current conditions.

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: Teaching. Sentence 2: Teaching 

Ex Output:

yes