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: And after the amazing experience of seeing history come to life, people would obviously want a souvenir. Sentence 2: People needed souvenirs when they went on vacation.
no

Sentence 1: The distinction between the two is apparent in Martin Luther King Jr.'s eloquent and moving, I Have a Dream speech, which would have been much less effective had he concluded, Fresh at last, fresh at last, thank God almighty, I'm fresh at last. Sentence 2: I have a dream speech was by Martin Luther King Jr.
yes

Sentence 1: Unconventionally gifted kids, who didn't get top grades in high school or who don't have perfect SAT scores, stand a better chance than they do elsewhere of getting in--and of being presented with the highest level of intellectual challenge. Sentence 2: Test scores and school grades do not determine chance of success. 

yes