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: " We continue to work with the Saudis on this , but they did not , as of the time of this tragic event , provide the additional security we requested . ", Sentence2: " But they did not , as of the time of this particular tragic event , provide the security we had requested , " Mr Jordan said .
Example Output: No

Example Input: Sentence1: The new effort , Taxpayers Against the Recall , will be formally launched Wednesday outside a Sacramento fire station ., Sentence2: Called " Taxpayers Against the Recall , " it was to be launched Wednesday afternoon outside a Sacramento fire station .
Example Output: Yes

Example Input: Sentence1: It 's the first such drill since the September 11 terrorist attacks on New York and Washington ., Sentence2: It is the nation 's first large-scale counterterrorism exercise since the Sept . 11 terrorist attacks .
Example Output:
Yes