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His works between the dates 1504 and 1508 show a marked influence from Fra Bartolomeo and Raphael , with whom he was friends .
 Fra Bartolomeo, Raphael
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Fra Bartolomeo, Raphael