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.

[EX Q]: Sentence 1: Goodness and purity maketh not much of a column. Sentence 2: Goodness and purity are still virtues that more people should pursue.
[EX A]: no

[EX Q]: Sentence 1: Western analysts now fear that the generals are using Chechnya to reassert control over national security and foreign policy. Sentence 2: Generals could do unsavory things with Cechnya.
[EX A]: no

[EX Q]: Sentence 1: For further contacts regarding this testimony, please contact J. Christopher Mihm at (202) 512-8676. Sentence 2: J. Christopher Mihm did not know anything about the testimony.
[EX A]:
yes