Question: What is the pole position for Marlboro Challenge?
SQL: SELECT "Pole position" FROM "2-10725629-2" WHERE "Race Name" = 'Marlboro Challenge';

Question: What circut has an Unknown fastest lap on July 19?
SQL: SELECT "Circuit" FROM "2-10725629-2" WHERE "Fastest lap" = 'Unknown' AND "Date" = 'July 19';

Question: What circuit did Marlboro Team Penske win with an Unknown fastest lap?
SQL: SELECT "Circuit" FROM "2-10725629-2" WHERE "Winning team" = 'Marlboro Team Penske' AND "Fastest lap" = 'Unknown';

Question: What team does Mario Andretti play pole position for?
SQL: SELECT "Winning team" FROM "2-10725629-2" WHERE "Pole position" = 'Mario Andretti';