Question: What was the first  form of shopping precinct or shopping center, in which one or more buildings form a complex of shops representing merchandisers with interconnecting walkways that enable customers to walk from unit to unit in Brasília?
Sentence (from "Conjunto Nacional (Brasília)"): The Shopping Conjunto Nacional (Joint National Mall), sometimes called by the CNB - Conjunto Nacional Brasília (Brasília Joint National), is the first "shopping center" in Brasília and the second mall to be built in Brazil, it was opened in 1971 and is one of the most traditional malls in the city.
Relevant evidence: Yes