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Proton Emas is a range of concept cars designed by Italdesign Giugiaro and developed by Proton .
 Proton, Italdesign Giugiaro, Proton
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Proton, Italdesign Giugiaro, Proton