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Brig . Gen . Vincent Brooks announced the capture of Barzan Ibrahim Hasan al - Tikriti , telling reporters he was an adviser to Saddam ` ` with extensive knowledge of the regime ' s inner workings . ' '
 the regime, Brig . Gen, Brig . Gen . Vincent Brooks, Barzan Ibrahim Hasan al - Tikriti, reporters, he, an adviser to Saddam ` ` with extensive knowledge of the regime ' s inner workings, Saddam
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 regime, Brig . Gen, Brig . Gen . Vincent Brooks, Barzan Ibrahim Hasan al - Tikriti, reporters, he, an adviser to Saddam ` ` with extensive knowledge of the regime ' s inner workings, Saddam