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nutrition × 13food × 7
agriculture × 4
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united-states × 1
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india × 1
united-kingdom × 1
warfare × 1
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social-history × 1
native-americans × 1
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medicine × 1
prehistory × 1
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disease × 1
victorian × 1
modern × 1
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greece × 1
alexander-the-great × 1