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The First Year The Corner Theatre Experimental Theatre Club ( Corner Theatre E.T.C. ) was created in the immediate aftermath of a Monday night lecture given by New York 's La MaMa founder/artistic director Ellen Stewart at Center Stage , Baltimore 's resident Equity theatre .
 Corner Theatre, Theatre, Corner Theatre, La MaMa, Ellen Stewart, Baltimore, Equity
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Corner Theatre, Theatre, Corner Theatre, La MaMa, Ellen Stewart, Baltimore, Equity