Question: How many shops are in the underground shopping centre under the towers of the complex connected by tunnel to another complex in Downtown Montreal through the Atwater metro station?  
Sentence (from "Underground City, Montreal"): RÉSO, commonly referred to as The Underground City (French: "La Ville Souterraine" ), is the name applied to a series of interconnected office towers, hotels, shopping centres, residential and commercial complexes, convention halls, universities and performing arts venues that form the heart of Montreal's central business district, colloquially referred to as Downtown Montreal.
Relevant evidence: No