52496
Historically , these were regions long ruled by dynasties of various Iranian empires , that incorporated considerable aspects of Persian culture through extensive contact with them , or where sufficient Iranian peoples settled to still maintain communities who patronize their respective cultures .
 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