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: Remember that contacting legal agencies for pro bono clients can lead to paying work. Sentence 2: Pro bono work never leads to paid positions.
Example Output: yes

Example Input: Sentence 1: The brill were slaughtered for food and San'doro assured them that the slaves would find their way. Sentence 2: The brill were killed.
Example Output: yes

Example Input: Sentence 1: And who knew what the demonic riders did to their spears before battle. Sentence 2: The riders always ran away from every battle they encountered, for they carried no weapons. 
Example Output:
yes