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He was elected Mayor of Christchurch in 1885 unopposed , and was re-elected a year later in the most keenly contested mayoral election thus far , narrowly beating Charles Louisson .
 location: Christchurch; person: Charles Louisson
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: Christchurch, Charles Louisson 
Answer:
 location: Christchurch; person: Charles Louisson