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the biggest problem tariq aziz ' family says they now face is that aziz is now safely in u . s . custody , they don ' t know how safe they are out on baghdad ' s streets .
 u . s, baghdad, tariq aziz, tariq aziz ' family, they, aziz, they, they, baghdad ' s streets
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:
 u . s, baghdad, tariq aziz, tariq aziz ' family, they, aziz, they, they, baghdad ' s streets