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Since  his  early years with the  Australian Theatre for Young People  Salvatore sought to broaden his theatrical schooling by studying the realistic techniques of Sanford Meisner Michael Chekhov and David Mamet .
 his, Australian Theatre for Young People
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
Answer:
 his, Australian Theatre for Young People