What is the IATA of Madrid-Barajas Airport?
CREATE TABLE table_name_8 (iata VARCHAR, airport VARCHAR)
SELECT iata FROM table_name_8 WHERE airport = "madrid-barajas airport"
### Context: CREATE TABLE table_name_8 (iata VARCHAR, airport VARCHAR) ### Question: What is the IATA of Madrid-Barajas Airport? ### Answer: SELECT iata FROM table_name_8 WHERE airport = "madrid-barajas airport"