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: They stood again, tips to the sky and left hands out in salute. Sentence 2: They were waving their right hands. 
Example Output: yes

Example Input: Sentence 1: oh me to boy i have to hunt hunt them down uh-huh Sentence 2: I never have to hunt anyone down, thankfully. 
Example Output: yes

Example Input: Sentence 1: 'What?' Sentence 2: I heard that.
Example Output:
yes