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With financial security behind him , Louisson first became a councillor for Christchurch City Council for six years ( 1881 – 1887 ) before being elected Mayor of Christchurch ( 1887 – 1889 and 1897 – 1899 ) .
 Louisson, Christchurch City Council, Christchurch
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Louisson, Christchurch City Council, Christchurch