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: " This is extraordinarily fast , " said Matt Geller , an analyst at CIBC World Markets ., Sentence2: They are actually going to record sales for Velcade this year , " said Matt Geller , an analyst at CIBC World Markets .
Example Output: No

Example Input: Sentence1: The two have no diplomatic ties and their already tense relationship has been frayed by the crisis over the North 's nuclear ambitions ., Sentence2: The two have no diplomatic ties and their already tense relationship has been frayed further by a diplomatic spat over North Korea 's nuclear ambitions .
Example Output: Yes

Example Input: Sentence1: No one has been killed in the attacks , which have continued despite major setbacks for al Qaeda in a battle with Saudi security forces ., Sentence2: No one has been killed in the recent attacks , which have continued despite serious setbacks for al-Qaeda following battles with Saudi security forces .
Example Output:
Yes