user: Question: What was the transfer fee for the player ending in 2011 and moving from Thrasyvoulos?
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" = 2011.0 AND "Moving from" = 'Thrasyvoulos';