CREATE TABLE table_7998 ("Date" TEXT, "Season" TEXT, "Playing for" TEXT, "Opponent" TEXT, "Final score" TEXT)

What shows for playing when the opponent was Real Espa a, in the 2012 13 season?
SELECT "Playing for" FROM table_7998 WHERE "Opponent" = 'real españa' AND "Season" = '2012–13'
SELECT "Playing for" FROM "table_7998" WHERE "Opponent" = 'real españa' AND "Season" = '2012–13'