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He added that the Mahdi Army is receiving logistic and military support from Iran and that they are not encountering any problems in getting weapons through to Sadr City because they usually present a letter to each of the checkpoints they pass through .
 organization: the Mahdi Army; geographical social political: Iran; geographical social political: Sadr City
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 organization: the Mahdi Army; geographical social political: Iran; geographical social political: Sadr City