Question: What city does O and Cirque du Soleil play in?
Sentence (from "O (Cirque du Soleil)"): The "O" theatre, which is designed to resemble a 14th-century European opera house, has 1,800 seats, thus allowing the performance to be watched by 3,600 people a night since the performance usually plays twice in a given day, also designed to meet the special demands of the show.
Relevant evidence: No