user: Question: WHAT IS THE COUNTRY WITH Summer TRANSFER WINDOW?
Columns: ['Name', 'Country', 'Status', 'Moving to', 'Transfer window', 'Transfer fee']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Kanu', 'BRA', 'Loaned out', 'CercleBrugge', 'Winter', 'n/a']
SQL:

assistant: SELECT "Country" FROM "Table" WHERE "Transfer window" = 'Summer';