CREATE TABLE table_35613 ("Rank" CLOB, "Margin" CLOB, "Opponent" CLOB, "Venue" CLOB, "Season" CLOB)

What opponent has 2011/12 as the season?
SELECT "Opponent" FROM table_35613 WHERE "Season" = '2011/12'
SELECT "Opponent" FROM "table_35613" WHERE "Season" = '2011/12'