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: There was an enormous sphere of thin crystal to represent the sky. Sentence 2: The crystal is very expensive and precious.
[A]: no


[Q]: Sentence 1: You have found one?" My interest was aroused.  Sentence 2: I was now interested.
[A]: yes


[Q]: Sentence 1: It was approved by OMB on January 23, 1998. Sentence 2: OMB denied their request on January 23, 1998.
[A]:
yes