user: Question: What is Winner, when Dates is Dec 11-14?
Columns: ['Dates', 'Tournament', 'Country', 'Prize fund ( US$ )', 'Winner', 'OWGR pts']
Types: ['text', 'text', 'text', 'real', 'text', 'real']
Sample row: ['Feb 7-10', 'Emaar-MGF Indian Masters', 'India', 2500000.0, 'Shiv Chowrasia (1)', 26.0]
SQL:

assistant: SELECT "Winner" FROM "Table" WHERE "Dates" = 'Dec 11-14';