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: The war broke out in Hawaii as nowhere else in America with the surprise attack on Pearl Harbor (7 December 1941). Sentence 2: The axis forces were responsible for the attack.

Output: no


Input: Consider Input: Sentence 1: The northerner drew a long thin blade from his belt and examined it. Sentence 2: The northerner looked a blade he took out from his boot.

Output: yes


Input: Consider Input: Sentence 1: If it had been Monsieur John, I could have understood it.  Sentence 2: If it had been Matt, I wouldn't have understood.


Output: yes