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United Artists thought that the Beatles would be a short - lived phenomenon , but Shenson foresaw their staying power and struck an agreement with the studio that all rights to the film would revert to him after 15 years .
 United Artists, the studio, the Beatles, Shenson, their, him
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 United Artists, the studio, the Beatles, Shenson, their, him