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As regards his teaching activity , the inclusion of solfeggiamenti a due ( solfège s for two voices ) in its title is the only clue , along with the record in the aforementioned inventory , that on the date of 13 December 1729 reports : " Giovanni Gentile was from 1645-49 registered as a musician at Santo Stefano del Cacco ( Rome ) , along with 3 grandchildren and some guests , possibly his student .
 Giovanni Gentile, Rome
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Giovanni Gentile, Rome