user: Question: What was the transfer fee for the player moving in the Winter window and ending in a year after 2010?
Columns: ['Nat.', 'Name', 'Moving from', 'Type', 'Transfer window', 'Ends', 'Transfer fee']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['ARG', 'Arruabarrena', 'Villarreal', 'Transfer', 'Summer', 2010.0, 'Free']
SQL:

assistant: SELECT "Transfer fee" FROM "Table" WHERE "Ends" > 2010.0 AND "Transfer window" = 'Winter';