Question: What is the transfer window for Hleb?
SQL: SELECT "Transfer window" FROM "2-17686681-2" WHERE "Name" = 'Hleb';

Question: What is the lowest ends for Dani Alves?
SQL: SELECT MIN("Ends") FROM "2-17686681-2" WHERE "Name" = 'Dani Alves';

Question: What is the name of the person with a type of Transfer, and a Transfer fee of €8M + €2M in variables?
SQL: SELECT "Name" FROM "2-17686681-2" WHERE "Type" = 'Transfer' AND "Transfer fee" = '€8M + €2M in variables';