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An other of their students was Benjamin S. Graham , who started applying scientific management and industrial engineering techniques to offices and clerical work in factories , and coined the concept of paperwork simplification .
 person: Benjamin S. Graham
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: Benjamin S. Graham 
Answer:
 person: Benjamin S. Graham