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

Ex Input:
Sentence1: The vulnerability affects Windows NT 4.0 , NT 4.0 Terminal Services Edition , XP and 2000 , as well as Windows Server 2003 ., Sentence2: Microsoft issued a patch for the vulnerability , which affects Windows NT 4.0 , Windows NT 4.0 Terminal Services Edition , Windows 2000 , Windows XP and Windows Server 2003 .

Ex Output:
No

Ex Input:
Sentence1: " Our policies are well-known , and I 'm not aware of any changes in policy " on Iran , Powell said ., Sentence2: " Our policies are well known and I 'm not aware of any changes , " Secretary of State Colin Powell said Tuesday .

Ex Output:
Yes

Ex Input:
Sentence1: The patch also fixes a vulnerability that results because IE does not implement an appropriate block on a file download dialog box ., Sentence2: The second vulnerability is a result of IE not implementing a block on a file download dialog box .

Ex Output:
No