CREATE TABLE table_203_655 (id NUMBER, "goal" NUMBER, "date" CLOB, "venue" CLOB, "opponent" CLOB, "score" CLOB, "result" CLOB, "competition" CLOB)

what was the only opponent that had a result of 4-0 ?
SELECT "opponent" FROM table_203_655 WHERE "result" = '4-0'
SELECT "opponent" FROM "table_203_655" WHERE "result" = '4-0'