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Bin al-Shibh is known to have shared a room with Mohamed Atta in Hamburg , Germany and to be a financial backer of al-Qaeda operations .
 al-Shibh, Mohamed Atta
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 al-Shibh, Mohamed Atta