Question: Lucienne "Lucy" Rokach, an English professional poker player from Stoke-on-Trent, was born in  a city whose metropolitan area is the largest in the Middle East and the Arab world, and the 15th-largest in the world, called what?
{'answer': 'Cairo', 'supporting_facts': [['Lucy Rokach', 0], ['Lucy Rokach', 1], ['Cairo', 1]]}