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Versions of a tropical geometry , of an absolute geometry over a field of one element and an algebraic analogue of Arakelov 's geometry were realized in this setup .
 person: Arakelov
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: Arakelov