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During his 13-year tenure ( from 1909 onward as professor ) he taught many notable students , including Sergei Prokofiev , Aleksandr Gauk , Yuri Shaporin and Lazare Saminsky .
 person: Sergei Prokofiev; person: Aleksandr Gauk; person: Yuri Shaporin; person: Lazare Saminsky
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: Sergei Prokofiev; person: Aleksandr Gauk; person: Yuri Shaporin; person: Lazare Saminsky