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.

[EX Q]: Sentence 1: The second managed a scream before the huge blade hewed into his skull. Sentence 2: The blade bounced off the man's helmet. 
[EX A]: yes

[EX Q]: 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.
[EX A]: yes

[EX Q]: Sentence 1: An auditor should use this guide to identify areas that are most likely to result in technical failures, unmet user needs, cost overruns, or schedule delays. Sentence 2: To head off any problems with implementation and use of the system, the auditor should follow the steps outlined in this pamphlet.
[EX A]:
no