81450
These traditions can be summarized as : fengshui geomancy and astronomy ; the well-field system ; gaitian cosmology ; qi as a medium of energy connecting man , earth , and heaven ; political power shared between a military aristocracy and educated advisers ; the holy place bo ; a three-tiered economic system under absolute state control ; early writing ; and the walled yet portable capital city as a diagram of political power .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None