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.

Example Input: Sentence 1: There are many conditions that are not visible. Sentence 2: There are many hidden conditions.
Example Output: yes

Example Input: Sentence 1: Limestone stoichiometry is the number of moles of Ca added per mole of SO2 removed. Sentence 2:  Limestone stoichiometry is the number of moles of Ca added per mole of SO2 removed.
Example Output: yes

Example Input: Sentence 1: If he doesn't he could end up like Knight. Sentence 2: He'll end up like Knight if he doesn't choose to.
Example Output:
yes