CREATE TABLE table_54502 ("Tournament" CLOB, "Date" CLOB, "City" CLOB, "Country" CLOB, "Surface" CLOB, "Singles champions" CLOB)

Who was the Singles Champions in Trieste, Italy?
SELECT "Singles champions" FROM table_54502 WHERE "Country" = 'italy' AND "City" = 'trieste'
SELECT "Singles champions" FROM "table_54502" WHERE "City" = 'trieste' AND "Country" = 'italy'