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Still , more than a week after the regime collapsed , Marine Staff Sgt . Jose Guillen said power has been restored _ by use of diesel plants _ to only about 500 homes in Baghdad , a city of roughly 5 million .
 Baghdad, a city of roughly 5 million, the regime, Marine, Marine Staff Sgt, Marine Staff Sgt . Jose Guillen, roughly 5 million, diesel plants, only about 500 homes in Baghdad , a city of roughly 5 million
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:
 Baghdad, a city of roughly 5 million, the regime, Marine, Marine Staff Sgt, Marine Staff Sgt . Jose Guillen, roughly 5 million, diesel plants, only about 500 homes in Baghdad , a city of roughly 5 million