user: Question: Which carrier is ranked 20?
Columns: ['Rank', 'Airport', 'Passengers', 'Aircraft Movements', 'Carriers']
Types: ['real', 'text', 'real', 'real', 'text']
Sample row: [1.0, 'Shanghai, China', 192701.0, 1465.0, 'China Eastern Airlines , Jin Air']
SQL:

assistant: SELECT "Carriers" FROM "Table" WHERE "Rank" = 20.0;