Problem: Which instrument is most closely associated with jazz musician Charlie Mingus?
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A: double bass

Problem: Which body and its moons were visited and studied by the New Horizons probe in July?
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A: pluto

Problem: How are 'Jean de Dinteville' and 'Georges de Selve' referred to in the title of a 1553 Holbein painting?
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A: ambassadors

Problem: Which military academy was established in 1802 on the Hudson River, USA?
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A:
west point