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.

Example Input: Sentence 1: Try to get there early, as tours sell out quickly on busy days. Sentence 2: You should get there early in the morning as tours sell out quickly.  
Example Output: yes

Example 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.
Example Output: no

Example Input: Sentence 1: Twenty years later, it was J.P. Sentence 2: Two decades later, J.P. is the one who got the promotion. 
Example Output:
no