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: In the following centuries sand swept through the area burying many of the buildings. Sentence 2: Over time, sand swept through the region and buries the buildings.
yes

Sentence 1: Decision papers, memoranda, or other records of Sentence 2: Decision papers are documents about certain decisions.
yes

Sentence 1: Today, a letter writer who once interviewed the spy claims that to the dead man's knowledge, U.S. authorities never approved Diem's assassination. Sentence 2: A man that interviewed a spy claimed that the US never approved of Diem's assassination.
yes