instruction:
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.
question:
Sentence 1: 'Of course. Sentence 2: It was obviously so.
answer:
yes


question:
Sentence 1: Each of the companies visited used this as an indicator of the product's readiness for production and emphasized the importance of having critical manufacturing processes under control by the start of production. Sentence 2: Most of these companies had to learn this the hard way from previous production breakdowns.
answer:
no


question:
Sentence 1: He was aware of movement behind him. Sentence 2: Something was moving behind him, and he knew it.
answer:

yes