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.
Q: Sentence 1: The big gray knew very well what was in progress, was tensing now for a swift getaway leap. Sentence 2: The big gray stood still and did nothing.
A:
yes