Problem: On June 15, 1844, Charles Goodyear was granted a patent for the vulcanization of rubber, a process by which what element, represented by the symbol S, is added to rubber?
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A: sulfur

Problem: In humans, the deficiency of which vitamin causes pellagra?
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A: b3

Problem: What was the last battle fought on English soil?
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A: sedgemoor

Problem: Which actor played the lead in the film 'Air Force One'?
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A:
harrison ford