question: LAGOS, Nigeria A union leader in Nigeria is threatening to prolong a four-day nationwide strike that has helped push world oil prices to record highs.
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answer: World

question:  CHICAGO, (Sports Network) - The Chicago Bears are expected  to sign quarterback Jeff George on Monday.
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answer: Sports

question: Plans by Microsoft Corp to charge royalties on a library of patents are looking uncertain after the US Patent and Trademark Office rejected a key software patent claimed by the company.
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Science/Tech