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The agency added that al - Bashir also informed Abu Dhabi ' s crown prince Sheikh Khalifa Ben Zayid Al Nihyan of the " efforts to ensure national concord through Libyan - Egyptian mediation , " launched in 1999 .
 Abu Dhabi, national, Libyan, Egyptian, The agency, al - Bashir, Abu Dhabi ' s crown prince, Sheikh Khalifa Ben Zayid Al Nihyan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 Abu Dhabi, national, Libyan, Egyptian, The agency, al - Bashir, Abu Dhabi ' s crown prince, Sheikh Khalifa Ben Zayid Al Nihyan