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: The intervention led to a small change in bike helmet use and a slightly larger change in seat belt use, but it did not lead to changes in alcohol variables or weapon carrying. Sentence 2: The intervention helped saved a lot of different lives. 
Example Output: no

Example Input: Sentence 1: The trend is called brachycephalization, and it has been happening mainly in rural Poland between the Carpathian Mountains and the Black Sea--which, for some arcane reason, is one of the few places on Earth where humans are still evolving. Sentence 2: The humans in rural Poland have evolved a third arm.
Example Output: no

Example Input: Sentence 1: Ramses IV was responsible for saving many of the mummies of his ancestors after tomb robbers desecrated their places of rest, stealing the treasures without thought for the reputation of the dead rulers. Sentence 2: After tomb robbers thoughtlessly stole the treasures in the tombs, Ramses IV was responsible for most of mummies within them.
Example Output:
yes