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A very early fictional account of space suits can be seen in Garrett P. Serviss ' novel " Edison 's Conquest of Mars " ( 1898 ) .
 person: Garrett P. Serviss
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: Garrett P. Serviss 
Answer:
 person: Garrett P. Serviss