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: This won't work, says Stephanopoulos, speaking  You can [avoid questions] in one press conference. Sentence 2: Stephanopolous believed this was bound to work.
Example Output: yes

Example Input: Sentence 1: A loaded rifle leaned at every window opening, ready to be fired through loopholes in the wooden war shutters. Sentence 2: There was a loaded rifle that was ready to be fired towards trespassers. 
Example Output: no

Example Input: Sentence 1: Waves are additive. Sentence 2: Waves are not additive.
Example Output:
yes