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: This proved highly dangerous to pilgrims who approached the abbey across the sands (the causeway joining the island to the mainland was not built until 1874). Sentence 2: Many pilgrims perished en route to the abbey.
Example Output: no

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: Never mind. Sentence 2: Don't worry.
Example Output:
yes