CREATE TABLE table_56213 ("Edition" TEXT, "Round" TEXT, "Date" TEXT, "Surface" TEXT, "Opponent" TEXT, "Result" TEXT)

Who is the opponent for the 1985 World Group i edition?
SELECT "Opponent" FROM table_56213 WHERE "Edition" = '1985 world group i'
SELECT "Opponent" FROM "table_56213" WHERE "Edition" = '1985 world group i'