You are given two sentences(Sentence1 and Sentence2). Answer "Yes" if these sentences are a paraphrase of one another, otherwise answer "No".

Example Input: Sentence1: He said there were complex reasons for the increased numbers of cases and scientists were only just beginning to understand the risk factors ., Sentence2: However , he said , The reasons behind the increase in incidence are more complex and were just beginning to understand the risk factors .
Example Output: Yes

Example Input: Sentence1: But I would rather be talking about high standards than low standards . ", Sentence2: " I would rather be talking about positive numbers rather than negative .
Example Output: Yes

Example Input: Sentence1: WorldCom 's financial troubles came to light last year and the company subsequently filed for bankruptcy in July , 2002 ., Sentence2: WorldCom 's problems came to light last year , and the company filed for the largest bankruptcy in US history in July 2002 , citing massive accounting irregularities .
Example Output:
No