CREATE TABLE table_203_678 (id NUMBER, "rank" NUMBER, "wrestler" CLOB, "no. of reigns" NUMBER, "combined\ defenses" NUMBER, "combined\ days" NUMBER)

what is the difference in combined defenses between hiroshi tanahashi and kensuke sasaki ?
SELECT (SELECT "combined\ndefenses" FROM table_203_678 WHERE "wrestler" = 'hiroshi tanahashi') - (SELECT "combined\ndefenses" FROM table_203_678 WHERE "wrestler" = 'kensuke sasaki')
SELECT (SELECT "combined\ndefenses" FROM "table_203_678" WHERE "wrestler" = 'hiroshi tanahashi') - (SELECT "combined\ndefenses" FROM "table_203_678" WHERE "wrestler" = 'kensuke sasaki')