user: Question: What is the code for rank 10?
Columns: ['Rank', 'Airport', 'Code (IATA/ICAO)', 'Total Cargo (Metric Tonnes)', '% Change']
Types: ['real', 'text', 'text', 'real', 'text']
Sample row: [1.0, 'Memphis International Airport', 'MEM/KMEM', 3695438.0, '3.8%']
SQL:

assistant: SELECT "Code (IATA/ICAO)" FROM "Table" WHERE "Rank" = 10.0;