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.
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Question: Sentence 1: Waves are additive. Sentence 2: Waves are not additive.

Answer: yes


Question: Sentence 1: okay well good luck to the Rangers this season  see if they can pull one out Sentence 2: Good luck to the Rangers this season; let's see if they win.

Answer: yes


Question: Sentence 1: That's so. Maybe you think I'm talking through my hat, but I can deliver the goods all right, with enough over to spare for your fee.  Sentence 2: You probably think I can't do it but I can deliver the good by tomorrow. 

Answer:
no