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

SOLUTION: Yes

PROBLEM: 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 .

SOLUTION: Yes

PROBLEM: Sentence1: " This blackout was largely preventable , " U.S. Energy Secretary Spencer Abraham said at a briefing on the report ., Sentence2: " This blackout was largely preventable , " said Spencer Abraham , US energy secretary .

SOLUTION:
Yes