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

Sentence1: The broader Standard & Poor 's 500 Index .SPX gained 3 points , or 0.39 percent , at 924 ., Sentence2: The technology-laced Nasdaq Composite Index < .IXIC > rose 6 points , or 0.41 percent , to 1,498 .
Yes

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 .
Yes

Sentence1: Governor Gray Davis estimated yesterday that the fires could cost nearly $ 2 billion ., Sentence2: State officials estimated the cost at nearly $ 2 billion .

Yes