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Upon arriving to Mr. Stevens ' home early one week , Lewis heard Mr. Stevens practicing a different style of piano , and when he went upstairs for his lesson , he asked Mr. Stevens to show him what he had been playing .
 person: Lewis
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: Lewis 
Answer:
 person: Lewis