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Kulveer Singh Ranger ( born 1975 ) is a British Conservative politician , currently the Mayor of London 's Director of Environment and Digital London .
 Kulveer, Ranger, Conservative
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Kulveer, Ranger, Conservative