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 Input:
Sentence 1: Your request is very typical. Sentence 2: The request made by you is very strange.

Ex Output:
yes

Ex Input:
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.

Ex Output:
yes

Ex Input:
Sentence 1: Keep the engine going, and be ready to scoot like hell when I give the word." Sentence 2: The driver had no driver's license, but the robber didn't know that going in.

Ex Output:
no