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: The northerner drew a long thin blade from his belt and examined it. Sentence 2: The northerner looked a blade he took out from his boot.

Ex Output:
yes

Ex Input:
Sentence 1: But Sir James was already on the topmost stair. Sentence 2: They were telling Sir James to come upstairs, not realizing he was already there.

Ex Output:
no

Ex Input:
Sentence 1: The Liberties area, once a slum, is rapidly gentrifying, with new housing and restoration of the original small red-brick houses. Sentence 2: There are a lot of red brick houses being built.

Ex Output:
yes