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.

Sentence 1: One rather formidable group of mailers whose members will benefit mightily from the Commission's recommendations, the periodicals mailers, pointed out in a press statement that the overall average increase for First-Class mail was much smaller than the average increase for mail their members send. Sentence 2: Periodicals mailers never say a word in the press statements.
yes

Sentence 1: For purposes of this exercise, there are at least seven categories of costs and four benefits that might be reviewed. Sentence 2: There are no more than six categories of costs to be reviewed for this exercise.
yes

Sentence 1: and (3) who should do the federal government's business in the 21st century? Sentence 2: 21st-century federal government business.

yes