CREATE TABLE table_48683 ("Outcome" CLOB, "Date" CLOB, "Tournament" CLOB, "Surface" CLOB, "Opponent" CLOB, "Score" CLOB)

What is the Surface of the Court in Napoli?
SELECT "Surface" FROM table_48683 WHERE "Tournament" = 'napoli'
SELECT "Surface" FROM "table_48683" WHERE "Tournament" = 'napoli'