CREATE TABLE table_15691 ("Date" CLOB, "Score" CLOB, "Location" CLOB, "Competition" CLOB, "Serial No." CLOB)

On 11 Feb 1990, the competition is listed as what?
SELECT "Competition" FROM table_15691 WHERE "Date" = '11 feb 1990'
SELECT "Competition" FROM "table_15691" WHERE "Date" = '11 feb 1990'