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: But Sir James was already on the topmost stair. Sentence 2: They were telling Sir James to come upstairs, not realizing he was already there.
[A]: no


[Q]: Sentence 1: yeah there's a lot of people don't know about it it's put out by Commodore they made the sixty four but this is a machine that they bought from a company that got started up in California Sentence 2: Those machines are very costly.
[A]: yes


[Q]: Sentence 1: Fearing invasion, the Edinburgh town council built a protective wall (the  Flodden Wall ) around the city boundaries. Sentence 2: The Edinburgh town council was paranoid that aliens would invade so they commissioned the Flodden Wall.
[A]:
no