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.

Input: Consider Input: Sentence 1: I've sprained something. Sentence 2: My ankle hurts a little bit.

Output: no


Input: Consider Input: Sentence 1: Western analysts now fear that the generals are using Chechnya to reassert control over national security and foreign policy. Sentence 2: Generals could do unsavory things with Cechnya.

Output: no


Input: Consider Input: Sentence 1: The Department of Justice, for example, supported an exploratory case study of the career criminal program (Chelimsky and Dahmann, 1980). Sentence 2: The Department of Justice must remain objective and thus cannot support any case studies done. 


Output: yes