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The Vredeford Dome in the center of the Witwatersrand Basin is the largest goldfield in the world which has supplied about 40 % of all the gold ever mined in an impact structure ( though the gold did not come from the bolide ) .
 location: Vredeford Dome; location: Witwatersrand Basin
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: Vredeford Dome, Witwatersrand Basin 
Answer:
 location: Vredeford Dome; location: Witwatersrand Basin