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.

Input: Consider Input: Sentence 1: But there are plenty of things for dollar-wielding visitors to buy now that private enterprise is permitted on a limited scale. Sentence 2: Private enterprise is not permitted.

Output: yes


Input: Consider 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.

Output: no


Input: Consider Input: Sentence 1: and it was eight years before i had to do it again Sentence 2: I had to do it again after eight years.


Output: yes