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The MGM film was shot on location in Boston and Cape Cod ; according to one critic , it was " the first commercial feature to be predominantly shot " on location in Boston .
 MGM, Boston, Cape Cod, Boston
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, Boston, Cape Cod, Boston