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: and the other part of it is parents have quit becoming parents Sentence 2: The other issue is that parents have stopped being parents.
Example Output: yes

Example Input: Sentence 1: For many, the image of Greek music and dance is inexorably linked to the film Zorba the Greek.  Sentence 2: The film Zorba the Greek is the last thing most people think of when they imagine Greek music and dance.
Example Output: yes

Example Input: Sentence 1: He demanded that the British merchants in Canton surrender their opium stores, and to back up his ultimatum he laid siege to the traders, who, after six tense weeks, surrendered over 20,000 chests of opium. Sentence 2: He took interest in the merchants with opium, and demanded they be given to him.
Example Output:
yes