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

[EX Q]: Sentence1: The market remains pinned in a narrow range after a powerful rally drove the broad Standard & Poor 's 500 index .SPX up more than 20 percent since mid-March ., Sentence2: The market remains pinned in a narrow range after a powerful rally pushed the broad S & P 500 index up more than 20 percent since mid-March .
[EX A]: Yes

[EX Q]: Sentence1: The virus spreads when unsuspecting computer users open file attachments in emails that contain familiar headings like " Thank You ! " and " Re : Details " ., Sentence2: Sobig.F spreads when unsuspecting computer users open file attachments in e-mails that contain such familiar headings as " Thank You ! , " " Re : Details " or " Re : That Movie . "
[EX A]: Yes

[EX Q]: Sentence1: He said firefighters had an advantage on the northern flank because of an existing firebreak dug during last year 's fire north of Mount Lemmon ., Sentence2: Fire spokesman Gordon Gay said firefighters had an advantage on the northern flank because of burned areas from last year 's Bullock fire .
[EX A]:
Yes