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: In providing services and in establishing classifications, rates, and fees under this title, the Postal Service shall not, except as specifically authorized in this title, make any undue or unreasonable discrimination among users of the mails, nor shall it grant any undue or unreasonable preferences to any such user. Sentence 2: Discrimination is preferred by the Postal Service.
Example Output: yes

Example Input: Sentence 1: then we decided to have kids Sentence 2: Then we chose to have children of our own.
Example Output: yes

Example Input: Sentence 1: They are coming here! shouted Ca'daan. Sentence 2: Ca'daan shouted out loudly "they're all dead"!
Example Output:
yes