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 only know little old New York. Sentence 2: I've never heard of New York.
yes

Sentence 1: Citicorp could have agreed to market Travelers insurance or Salomon brokerage services, and vice versa, without actually becoming one company. Sentence 2: Citicorp had the opportunity to market the insurance companies without merging.
yes

Sentence 1: It is supported by good science and good economics, as well as by good intentions. Sentence 2: Science supports it.
yes