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Ericsson and Smith In 1835 , two inventors in Britain , John Ericsson and Francis Pettit Smith , began working separately on the problem .
 person: Ericsson; location: Britain; person: John Ericsson; person: Francis Pettit Smith
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: Ericsson, Britain, John Ericsson, Francis Pettit Smith 
Answer:
 person: Ericsson; location: Britain; person: John Ericsson; person: Francis Pettit Smith