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: Jon spoke again, nodding his head slightly. Sentence 2: He was trying to convince them.

Ex Output:
no


Ex Input:
Sentence 1: I believe I've only seen your hand shake once. Sentence 2: There is only one time I have seen your hand shake.

Ex Output:
yes


Ex Input:
Sentence 1: In summary, the total time needed to complete the design, installation, and testing at a facility with one ACI unit is about 15 months, at a facility with two ACI units is approximately 16 months. Sentence 2: It will take only two weeks to complete all stages at a facility with one ACI unit.  

Ex Output:

yes