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Empiricism , which associates numbers with concrete physical objects , and Platonism , in which numbers are abstract , non-physical entities , are the preeminent forms of mathematical realism .
 person: Platonism
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:
 person: Platonism