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: This is a simplification of reality, which probably involves a curve with a slight upward slope. Sentence 2: In reality, it's probably a 20 degree upward slope. 

Output: no


Input: Consider Input: Sentence 1: Schiff told the Star the story was absolutely not true. Sentence 2: Shiff decided to keep his opinions to himself.

Output: yes


Input: Consider Input: Sentence 1: But he covered his thoughts in a neutral expression and went forward quietly toward the huge council room. Sentence 2: He masked his thoughts and proceeded to the council room.


Output: yes