CREATE TABLE table_6140 ("Team 1" TEXT, "Agg." TEXT, "Team 2" TEXT, "1st leg" TEXT, "2nd leg" TEXT)

What is the 2nd leg of team 1 Zamalek SC?
SELECT "2nd leg" FROM table_6140 WHERE "Team 1" = 'zamalek sc'
SELECT "2nd leg" FROM "table_6140" WHERE "Team 1" = 'zamalek sc'