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Tony Kettle is an award winning architect best known for designing the Falkirk Wheel in Scotland and Lakhta Centre , Gazprom Head Quarters in Saint Petersburg , Russia .
 organization: Gazprom; location: Saint Petersburg
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: Gazprom, Saint Petersburg 
Answer:
 organization: Gazprom; location: Saint Petersburg