user: Question: What are the ends for the player with a transfer fee of Loan?
Columns: ['Nat.', 'Name', 'Since', 'Goals', 'Ends', 'Transfer fee']
Types: ['text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['ESP', 'Iker Casillas ( VC )', '1999', 0.0, '2017', 'Youth system']
SQL:

assistant: SELECT "Ends" FROM "Table" WHERE "Transfer fee" = 'Loan';