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.
Q: Sentence 1: The uncertainty about how these mobile source rules will be implemented in the future contributes to uncertainty in both the Base Case and the Clear Skies Act profile. Sentence 2: The uncertainty about the mobile source rules will be addressed in the future.
A:
yes