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Background Langdon Colbourne was born on 15 September 1835 in Hackney London .
 person: Langdon; location: Hackney
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: Langdon, Hackney 
Answer:
 person: Langdon; location: Hackney