CREATE TABLE table_35493 ("Date" CLOB, "Tournament" CLOB, "Surface" CLOB, "Opponen" CLOB, "Score" CLOB)

Which Surface has a Date of january 2, 2006?
SELECT "Surface" FROM table_35493 WHERE "Date" = 'january 2, 2006'
SELECT "Surface" FROM "table_35493" WHERE "Date" = 'january 2, 2006'