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?
Sentence (from "Lucy Rokach"): She was born in Cairo, Egypt and is now regarded as one of the top female players in Europe.
Relevant evidence: Yes