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: well i i wasn't helping them i worked with them not to help them but actually for my own purposes i'm i'm a linguist and i was uh doing a language trying to learn their language a little bit and i actually um i mean helped them them in the sense that they received money for working with me but i didn't i didn't i wasn't a social worker or anything like that Sentence 2: I worked with them so I could learn how to speak Swahili. 
Example Output: no

Example Input: Sentence 1: Rural carriers furnish their own vehicles and provide all maintenance, repairs, and fuel, for which they are paid an allowance. Sentence 2: It is very cheap for rural carriers to maintain their vehicles, so they end up making a profit with their allowance fee.
Example Output: no

Example Input: Sentence 1: Now conservatives are fighting back. Sentence 2: Conservatives have given up and conceded that they are wrong on all matters.
Example Output:
yes