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Bombers have also hit targets in the northern cities of Mosul , Kirkuk and Tikrit , Saddam ' s hometown .
 the northern cities of Mosul , Kirkuk and Tikrit , Saddam ' s hometown, Mosul, Kirkuk, Tikrit, Saddam ' s hometown, Saddam, Bombers
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 the northern cities of Mosul , Kirkuk and Tikrit , Saddam ' s hometown, Mosul, Kirkuk, Tikrit, Saddam ' s hometown, Saddam, Bombers