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In 1914 , he married Eleanora Smith , a descendant of James Robertson ( explorer ) , in 1914 .
 person: James Robertson ( explorer )
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: James Robertson ( explorer ) 
Answer:
 person: James Robertson ( explorer )