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: If they say so, said the Astronomer, "I'm sure it will. Sentence 2: That must be the case.
[EX A]: yes

[EX Q]: Sentence 1: This is a simplification of reality, which probably involves a curve with a slight upward slope. Sentence 2: In reality, it's probably a 20 degree upward slope. 
[EX A]: no

[EX Q]: Sentence 1: and so they're pretty much available all day long Sentence 2: They are available all day.
[EX A]:
yes