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Studios While some Poverty Row studios came and quickly went after a few releases , others operated on more or less the same terms as — if vastly different scales from — major film studio s such as MGM , Warner Bros. , and Paramount Pictures .
 MGM, Warner Bros., Paramount Pictures
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 MGM, Warner Bros., Paramount Pictures