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During his debut campaign he performed consistently well and was a regular in the starting eleven , under coach Gian Piero Gasperini .
 Gian Piero Gasperini
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Gian Piero Gasperini