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He also appeared as one of the priests in Ingmar Bergman 's film The Magic Flute ( Trollflöjten ) and as the Herald in Roberto Rossellini 's film Giovanna d'Arco al rogo .
 Ingmar Bergman, Roberto Rossellini
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ingmar Bergman, Roberto Rossellini