Given the task definition and input, reply with output. You are given two sentences(Sentence1 and Sentence2). Answer "Yes" if these sentences are a paraphrase of one another, otherwise answer "No".

Sentence1: Researchers found that people 65 and older who had fish once a week had a 60 % lower risk of Alzheimer 's than those who never or rarely ate fish ., Sentence2: Older people who eat fish at least once a week could cut their risk of Alzheimer 's by more than half , a study suggests .
Yes