Question: Who is moving from Treviso with a Loan Return?
SQL: SELECT "Name" FROM "2-17634886-2" WHERE "Moving from" = 'Treviso' AND "Type" = 'Loan Return';

Question: What is the nationality of Acquafresca?
SQL: SELECT "Nat." FROM "2-17634886-2" WHERE "Name" = 'Acquafresca';

Question: What is the type if the transfer window is Summer and the moving from category is Free Agent?
SQL: SELECT "Type" FROM "2-17634886-2" WHERE "Transfer window" = 'Summer' AND "Moving from" = 'Free Agent';

Question: What is the transfer window for the moving from of São Paulo?
SQL: SELECT "Transfer window" FROM "2-17634886-2" WHERE "Moving from" = 'São Paulo';

Question: What is the moving from with a Transfer and the nationality of BRA?
SQL: SELECT "Moving from" FROM "2-17634886-2" WHERE "Type" = 'Transfer' AND "Nat." = 'BRA';

Question: What is the end date for Maaroufi?
SQL: SELECT "Ends" FROM "2-17634886-2" WHERE "Name" = 'Maaroufi';