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: The two are not related , but have referred to each other as father and son ., Sentence2: He 's not related to Malvo , but the two have referred to each other as father and son .
Yes