Read this: This makes for a large number of takeoffs and landings and it is not unusual for flights to be delayed in the holding pattern before landing. Following the airport's master plan, Infraero built a second runway, which was finished in 2006. In 2007, the airport handled 11,119,872 passengers. The main building's third floor, with 12 thousand square meters, has a panoramic deck, a food court, shops, four movie theatres with total capacity of 500 people, and space for exhibitions. Brasília Airport has 136 vendor spaces. The airport is located about 11 km (6.8 mi) from the central area of Brasília, outside the metro system. The area outside the airport's main gate is lined with taxis as well as several bus line services which connect the airport to Brasília's central district. The parking lot accommodates 1,200 cars. The airport is serviced by domestic and regional airlines (TAM, GOL, Azul, WebJET, Trip and Avianca), in addition to a number of international carriers. In 2012, Brasília's International Airport was won by the InfrAmerica consortium, formed by the Brazilian engineering company ENGEVIX and the Argentine Corporacion America holding company, with a 50% stake each. During the 25-year concession, the airport may be expanded to up to 40 million passengers a year.

What did Avianca build by following the airport master plan?
What is the answer? (If it cannot be answered, return "unanswerable")
unanswerable