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: Becker, Howard S. Problems of Inference and Proof in Participant Observation. Sentence 2: Problems of Inference and Proof in Participant Observation is related to Howard Becker.

Output: yes


Input: Consider Input: Sentence 1: well  my stepson you know i he went into the Navy or Air Force i just really get my military i married into a military family and i don't know i really address them all as generals so i don't offend anybody Sentence 2: My stepson became a pilot in the military.

Output: no


Input: Consider Input: Sentence 1: Fine profiles of Klayman have recently appeared in Newsweek and the Washington Post . But the conventions of newspaper journalism are such that an objective reporter cannot render his own opinion that the subject has a screw loose. Sentence 2: Several people believe that Klayman is mentally ill.


Output: no