Question: What is the capacity of the stadium at which the 2011 Copa América Final was held?
Sentence (from "Estadio Monumental Antonio Vespucio Liberti"): Estadio Antonio Vespucio Liberti (] ), also referred to as River Plate Stadium, Monumental de Núñez or simply El Monumental, is a stadium in the Núñez district of Buenos Aires, Argentina, home of the football club River Plate.
Relevant evidence: No