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The Orto Botanico dell ' Università di Pavia ( 20,000 m ² ) , also known as the Orto Botanico di Pavia , is a botanical garden maintained by the University of Pavia .
 Pavia, Pavia, University of Pavia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Pavia, Pavia, University of Pavia