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John Shaw Crout ( July 5 , 1899 - October 31 , 1987 ) was the Director of Engineering at Battelle Memorial Institute when , in 1944 , Battelle was visited by Chester Carlson , in order to obtain support for his idea about a xerographic process .
 person: Crout; organization: Battelle Memorial Institute; organization: Battelle; person: Chester Carlson
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: Crout, Battelle Memorial Institute, Battelle, Chester Carlson 
Answer:
 person: Crout; organization: Battelle Memorial Institute; organization: Battelle; person: Chester Carlson