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: I didn't invent them, but I did make them extra-dangerous. Sentence 2: I wasn't the one who created them but I did increase their level of danger.
[A]: yes


[Q]: Sentence 1: But it should be done, at once!" He then made a very careful examination of the drawers of the wash-stand.  Sentence 2: He carefully examined the drawers.
[A]: yes


[Q]: Sentence 1: Chapter 5 focuses on synergistic combinations of control retrofits on a single unit. Sentence 2: Chapter 5 focuse solely on synergy 
[A]:
yes