CREATE TABLE table_56731 ("Edition" FLOAT, "Zone" CLOB, "Round" CLOB, "Date" CLOB, "Against" CLOB, "Surface" CLOB, "Partner" CLOB, "Opponents" CLOB, "Result" CLOB)

Who was against the opponents, m d lina gojnea monica niculescu?
SELECT "Against" FROM table_56731 WHERE "Opponents" = 'mădălina gojnea monica niculescu'
SELECT "Against" FROM "table_56731" WHERE "Opponents" = 'mădălina gojnea monica niculescu'