Who won Pro Stock the year Tony Schumacher won Top Fuel and Tony Pedregon won Funny Car?
CREATE TABLE "winners" (
  "year" real,
  "top_fuel" text,
  "funny_car" text,
  "pro_stock" text,
  "pro_stock_motorcycle" text
);
SELECT "pro_stock" FROM "winners" WHERE "top_fuel"='tony schumacher' AND "funny_car"='tony pedregon';