Problem: Begun in 1897 and inspired by the success of the first modern-day marathon at the 1896 Olympics, what is the world's oldest annual marathon?
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A: boston marathon

Problem: What country was once led by military leaders called shoguns?
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A: japan

Problem: The Priestley medal is awarded for excellence in what field?
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A: chemistry

Problem: Proxima Centauri, the nearest known star to the Sun, is classified as what type of star?
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A:
red dwarf