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: But the data on marine casualties indicated that accidents were often caused, not by deficiencies in the vessels or other factors, but by human error. Sentence 2: The data on marine casualties showed that accidents were often caused machine failure.

Output: yes


Input: Consider Input: Sentence 1: These are the same types of concerns facing federal agencies. Sentence 2: These concerns include costs and delivery schedules.

Output: no


Input: Consider Input: Sentence 1: I'm a little uncomfortable with the way the question invites a sense of cultural superiority. Sentence 2: The question poses no problems. 


Output: yes