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: He began digging in 1900 after buying the site and financing the excavation program with his own money, and almost immediately struck the first building blocks of a huge Bronze Age palace replete with magnificent pottery and other artifacts. Sentence 2: Many archeologists from all over the world traveled to the site.
[EX A]: no

[EX Q]: Sentence 1: Philosophers and theologians try to answer these questions, but smart politicians rewrite them. Sentence 2: Philosophers try to answer questions.
[EX A]: yes

[EX Q]: Sentence 1: But Sir James said nothing. Sentence 2: Sir James didn't say anything.
[EX A]:
yes