4450
In 1957 , frustrated with bureaucracy and convinced that buildings designed with traditional methods appropriate to the climate of the area would speak louder than words , he moved to Athens to collaborate with international planners evolving the principles of ekistical design under the direction of Constantinos Apostolou Doxiadis .
 location: Athens; person: Constantinos Apostolou Doxiadis
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 location: Athens; person: Constantinos Apostolou Doxiadis