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In the early 1950s he befriended artists and writers such as Patrick Swift ( who encouraged McGuire to paint ) , Anthony Cronin and Lucian Freud ( Slade ) .
 Patrick Swift, McGuire, Anthony Cronin, Lucian Freud, Slade
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Patrick Swift, McGuire, Anthony Cronin, Lucian Freud, Slade