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ESO 1. Science

Topic 1.  Popular in Delicious/Astronomy 
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ESO 2. Science

Topic 2.  Popular in Delicious/Energy 
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ESO 3. Biology and Geology

Topic 2.  Popular in Deliciuos/Nutrition 
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Topic 5.  Popular in Delicious: Health 
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ESO 4. Biology and Geology

Topic 6.  Popular in Delicious/Environment 
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