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: Six million Poles lost their lives during World War II, and the Jewish population was decimated, reduced from 3 million to just a couple thousand. Sentence 2: During World War II, six million Poles lost their lives, and the Jewish population was decimated, reduced from 3 million to just a couple thousand.
yes

Sentence 1: Our overall objective was to determine whether best practices offer methods to improve the way DOD ensures that the design is stable early in the development process and whether having manufacturing processes in control before production results in better cost, schedule, and quality outcomes in DOD major acquisition programs. Sentence 2: They wanted to use the best practices for other projects as well.
no

Sentence 1: It is hard to see how. Sentence 2: It is easy to see how.
yes