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: If they say so, said the Astronomer, "I'm sure it will. Sentence 2: That must be the case.
Example Output: yes

Example Input: Sentence 1: From INdiaaaaah. Sentence 2: He said India obnoxiously 
Example Output: no

Example Input: Sentence 1: This served to reinforce the message that high levels of improper payments are unacceptable in the United Kingdom. Sentence 2: Having a lot of improper payments is not acceptable in the UK.
Example Output:
yes