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His film appearances included The Poisoned Diamond , directed by W.P. Kellino ( 1931 ) and It 's a Bet , directed by Alexander Esway ( 1935 ) .
 W.P. Kellino
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 W.P. Kellino