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Isaac Passy (; March 13, 1928, Plovdiv -- August 13, 2010) was a Bulgarian philosopher specializing in aesthetics. He was a professor at Sofia University from 1952 until 1993. He was the most prolific philosopher in the history of Bulgaria. He published over 40 monographs and over 80 volumes of the philosophical classics. He was the father of Solomon Passy.
 Isaac Passy, Plovdiv
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: place of death, place of birth, education degree, education institution 
Text: {0} 
Answer:
 Isaac Passy, Plovdiv