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Witnesses say they heard blasts around a presidential complex in the center of the city .
 geographical social political: the city; person: Witnesses; person: they; facility: a presidential complex in the center of the city; location: the center of the city
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 geographical social political: the city; person: Witnesses; person: they; facility: a presidential complex in the center of the city; location: the center of the city