CREATE TABLE table_12746 ("Nat." TEXT, "Name" TEXT, "Moving from" TEXT, "Type" TEXT, "Transfer window" TEXT, "Ends" FLOAT, "Transfer fee" TEXT)

What is the transfer window for Hleb?
SELECT "Transfer window" FROM table_12746 WHERE "Name" = 'hleb'
SELECT "Transfer window" FROM "table_12746" WHERE "Name" = 'hleb'