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He reduced the weight of the denarius from 84 per Roman pound to 96 ( 3.80 " grams to 3.30 " grams ) .
 location: Roman
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Roman 
Answer:
 location: Roman