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: But in these obscure aristocratic byways he could not but feel that an officious policeman might stop him to explain matters. Sentence 2: The policeman would be in the right to explain what was going on.  
no

Sentence 1: Others believed that only total (historical) costs should be used. Sentence 2: And the others believed that only thistorical (total) costs should be used.
yes

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