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He studied architecture at the Royal Institute of Technology , where he graduated in 1884 , and at the Royal Academy of Arts 1884-1887 .
 Royal Institute of Technology, Royal Academy of Arts
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Royal Institute of Technology, Royal Academy of Arts