CREATE TABLE table_35701 ("Track" CLOB, "City" CLOB, "State" CLOB, "Opened  ( closing date if defunct ) " CLOB, "Surface" CLOB, "Length" CLOB)

What is the surface for the riverhead raceway?
SELECT "Surface" FROM table_35701 WHERE "Track" = 'riverhead raceway'
SELECT "Surface" FROM "table_35701" WHERE "Track" = 'riverhead raceway'