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Educated at Caulfield Grammar School and the University of Melbourne , where he received a Bachelor of Arts degree , Ball studied both psychology and political science as a research fellow at Melbourne and the London School of Economics respectively .
 organization: Caulfield Grammar School; organization: University of Melbourne; person: Ball; organization: Melbourne; organization: London School of Economics
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Caulfield Grammar School; organization: University of Melbourne; person: Ball; organization: Melbourne; organization: London School of Economics