CREATE TABLE table_47720 ("Home team" CLOB, "Home team score" CLOB, "Away team" CLOB, "Away team score" CLOB, "Ground" CLOB, "Crowd" FLOAT, "Date" CLOB)

Which Away team has a Ground of gabba?
SELECT "Away team" FROM table_47720 WHERE "Ground" = 'gabba'
SELECT "Away team" FROM "table_47720" WHERE "Ground" = 'gabba'