CREATE TABLE table_48719 ("Home team" CLOB, "Home team score" CLOB, "Away team" CLOB, "Away team score" CLOB, "Ground" CLOB, "Date" CLOB, "Crowd" FLOAT)

What is Away Team Score, when Ground is Optus Oval, and when Away Team is Fremantle?
SELECT "Away team score" FROM table_48719 WHERE "Ground" = 'optus oval' AND "Away team" = 'fremantle'
SELECT "Away team score" FROM "table_48719" WHERE "Away team" = 'fremantle' AND "Ground" = 'optus oval'