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Helena is a 1924 German silent drama film directed by Manfred Noa and starring Edy Darclea , Vladimir Gajdarov and Albert Steinrück .
 Manfred Noa, Vladimir Gajdarov, Albert Steinrück
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Manfred Noa, Vladimir Gajdarov, Albert Steinrück