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: yeah there's a lot of people don't know about it it's put out by Commodore they made the sixty four but this is a machine that they bought from a company that got started up in California Sentence 2: Those machines are very costly.
Example Output: yes

Example Input: Sentence 1: This is not an artificial landscape supported solely by tourism; today's working farms help keep the Lake District vital and distinctive. Sentence 2: The farms in the Lake District supply the area with a surplus of food and materials.
Example Output: no

Example Input: Sentence 1: But he won't be needed this trip. Sentence 2: For this trip he will not be needed.
Example Output:
yes