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.

Sentence 1: I've sprained something. Sentence 2: My ankle hurts a little bit.
no

Sentence 1: Limestone stoichiometry is the number of moles of Ca added per mole of SO2 removed. Sentence 2:  Limestone stoichiometry is the number of moles of Ca added per mole of SO2 removed.
yes

Sentence 1: My brain was in a whirl.  Sentence 2: Everything was confusing. 

no