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As a master , González used to tell his students that to be a good painter , “ first you must learn to observe and get excited about the colours and forms of nature , regardless of whether the picture and its details are accurate reflection of reality or not .
 González
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 González