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: The first European to see the Mississippi was the Spanish Conquistador Hernando de Soto, brother-in-law of Balboa and the discoverer of the Pacific. Sentence 2: Hernando de Soto was the first European to set eyes on the Mississippi.
yes