1700
Official in  Muqtada al-Sadr  's office says one of the radical Shiite cleric's main aides arrested in  Baghdad  .
 cities of residence: Muqtada al-Sadr, Baghdad
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
Answer:
 cities of residence: Muqtada al-Sadr, Baghdad