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Whilst there , he became acquainted with contemporary French painters such as Albert Gleizes , Jean Metzinger , Fernand Léger and Robert Delaunay and after absorbing fauvists ' and cubists ' principles , developed his own unique coulorful style of painting .
 Albert Gleizes, Jean Metzinger, Fernand Léger, Robert Delaunay
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Albert Gleizes, Jean Metzinger, Fernand Léger, Robert Delaunay