user: Question: What Winner had a Prize of zł2,153,999?
Columns: ['Date', 'City', 'Event', 'Winner', 'Prize']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['28 Aug–2 Sep 2007', 'Barcelona', 'Barcelona Open', 'Sander Lyloff', '€1,170,700']
SQL:

assistant: SELECT "Winner" FROM "Table" WHERE "Prize" = 'zł2,153,999';