Definition: 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: Sentence 1: Second is the exciting but all too often disappointing notion that people can unite against a common enemy. Sentence 2: The enemy of my enemy if often my friend.
Output:
no