user: Question: What 2003 rank does the airport IATA code SIN have?
Columns: ['Rank', 'Airport', 'Location', 'Code (IATA)', 'Total Cargo (Metric Tonnes)', '2003 Rank', '% Change']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Memphis International Airport', 'Memphis , Tennessee , United States', 'MEM', '3,554,575', '1', '+4.8%']
SQL:

assistant: SELECT "2003 Rank" FROM "Table" WHERE "Code (IATA)" = 'SIN';