user: Question: What is the ICAO for the IATA BVC?
Columns: ['ISLAND', 'CITY / TOWN', 'ICAO', 'IATA', 'AIRPORTNAME']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Boa Vista', 'Rabil', 'GVBA', 'BVC', 'Aristides Pereira International Airport']
SQL:

assistant: SELECT "ICAO" FROM "Table" WHERE "IATA" = 'BVC';