CREATE TABLE "complete_formula_one_world_championship_" (
  "year" real,
  "entrant" text,
  "chassis" text,
  "engine" text,
  "points" text
);

Question: Which year has has a Engine of maserati straight-6?
SQL: SELECT COUNT("year") FROM "complete_formula_one_world_championship_" WHERE "engine"='maserati straight-6';

Question: What is the Point of Chassis of Lancia d50 in 1954
SQL: SELECT "points" FROM "complete_formula_one_world_championship_" WHERE "chassis"='lancia d50' AND "year"=1954;