question: Gol Transportes Aéreos is the second largest Brazilian airline company by market share after the company that merged with LAN Airlines on which date?
answer: June 22, 2012
context: Title: TAS – Transportes Aéreos Salvador
  Passage: TAS – Transportes Aéreos Salvador Ltda.  was a Brazilian airline founded in 1949.  In 1962 it was sold and incorporated to Sadia Transportes Aéreos.
  Title: Gol Transportes Aéreos
  Passage: Gol Linhas Aéreas Inteligentes S.A ("Gol Intelligent Airlines S.A." also known as VRG Linhas Aéreas S/A) BM&F Bovespa: GOLL3, GOLL4 / is a Brazilian airline based in São Paulo, Brazil.  According to the National Civil Aviation Agency of Brazil (ANAC), between January and December 2015 Gol had 35.9% of the domestic and 13.6% of the international market shares in terms of passengers per kilometer flown, making it the largest low-cost airline in South America and the second largest Brazilian airline company by market share and fleet size, after LATAM Brasil.  Gol competes in Brazil and other South American countries with Chilean LATAM Airlines Group, Brazilian Azul and Colombia-based Avianca Holdings S.A.  It also owns the brand Varig, although now that name refers to what is informally known as the "new" Varig, founded in 2006, not to the extinct "old" Varig airline, founded in 1927.
  Title: LATAM Brasil
  Passage: LATAM Airlines Brasil, formerly TAM Airlines (Portuguese: TAM Linhas Aéreas ), is the Brazilian brand of LATAM Airlines Group.  The merger of TAM with LAN Airlines was completed on June 22, 2012.  The company is currently the largest Brazilian airline by market share and fleet size, though it is not Brazil's official flag carrier.
  Title: Transportes Aéreos Nacional
  Passage: Transportes Aéreos Nacional was a Brazilian airline founded in 1946.  It was merged into Varig in 1961, when Varig bought the Consórcio Real-Aerovias-Nacional, of which Transportes Aéreos Nacional was one of the partners.
  Title: Organização Mineira de Transportes Aéreos
  Passage: Organização Mineira de Transportes Aéreos – OMTA was a Brazilian airline founded in 1946.  In 1950 it was sold to Transportes Aéreos Nacional, which eventually incorporated the airline in 1957.
citations: LATAM Brasil Gol Transportes Aéreos