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: Supplementary T and A records, containing information not previously discussed, shall be completed and maintained. Sentence 2: T and A records always contain information that has been discussed before.

Ex Output:
yes


Ex Input:
Sentence 1: Lake District hunters follow the pack on foot rather than using horses because the incline of the fells is too difficult for horses. Sentence 2: Lake District hunters follow behind on foot.

Ex Output:
yes


Ex Input:
Sentence 1: They were total strangers and perhaps it must be left that way. Sentence 2: They knew each other well.

Ex Output:

yes