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: Sun filed its lawsuit after an appeals court in Washington upheld the U.S. government 's antitrust case against Microsoft ., Sentence2: Sun filed the suit after the government 's successful antitrust suit against Microsoft .
Yes