6041
The band was formed in 2007 in Tehran , and during this time they have been trying to introduce and popularize country music in Iran by releasing two studio albums and performing live at concerts , despite the difficulties that the Islamic regime in Iran makes for bands that are active in the western music field .
 location: Tehran; location: Iran; organization: Islamic regime in Iran
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: Tehran, Iran, Islamic regime in Iran 
Answer:
 location: Tehran; location: Iran; organization: Islamic regime in Iran