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: Have you anyone who can testify to that? Sentence 2: Can anyone confirm that?
[A]: yes


[Q]: Sentence 1: Early in 1650 Oliver Cromwell stationed his garrison here while attempting to subdue the rebellious Scottish monarchists; he was victorious at the Battle of Dunbar. Sentence 2: Oliver Cromwell won the Battle of Dunbar.
[A]: yes


[Q]: Sentence 1: To understand a single case, the researcher must develop hunches about what is happening in the instance under study and systematically seek within it Sentence 2: To understand a case, the researcher has to form ideas about what is happening. 
[A]:
yes