CREATE TABLE table_55233 ("Match" FLOAT, "Date" CLOB, "Competition or tour" CLOB, "Ground" CLOB, "Opponent" CLOB, "Score1" CLOB)

What is the date ground A and Cartagena as an opponent?
SELECT "Date" FROM table_55233 WHERE "Ground" = 'a' AND "Opponent" = 'cartagena'
SELECT "Date" FROM "table_55233" WHERE "Ground" = 'a' AND "Opponent" = 'cartagena'