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: Six million Poles lost their lives during World War II, and the Jewish population was decimated, reduced from 3 million to just a couple thousand. Sentence 2: During World War II, six million Poles lost their lives, and the Jewish population was decimated, reduced from 3 million to just a couple thousand.
Example Output: yes

Example Input: Sentence 1: Jon spoke again, nodding his head slightly. Sentence 2: He was trying to convince them.
Example Output: no

Example Input: Sentence 1: She's radioactive because of the Drudge Report . The cover package also wonders who's leaking information to the press. Sentence 2: They wonder who is leaking information to the press. 
Example Output:
yes