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There , she became a devotee of Abstract Expressionism , and studied with two major figures of the movement : Hans Hofmann and Robert Motherwell .
 Hans Hofmann, Robert Motherwell
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Hans Hofmann, Robert Motherwell