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: The first wave of Polynesian settlers crossed the equator and arrived from the Marquesas in the South Pacific perhaps as early as a.d. 400. Sentence 2: The first wave of Polynesian setters arrived in the South Pacific as early as 400.
A:
yes