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

Question: What kind of Chassis supports a Maserati Straight-6 engine with Points greater than 0 and built in the year 1955?
SQL: SELECT "chassis" FROM "complete_formula_one_world_championship_" WHERE "engine"='maserati straight-6' AND "points">0 AND "year"=1955;

Question: What kind of Chassis supports an Equipe Gordini Entrant?
SQL: SELECT "chassis" FROM "complete_formula_one_world_championship_" WHERE "entrant"='equipe gordini';

Question: What kind of Entrant has a Maserati Straight-6 Engine, built in the year 1958 or early, and has a Maserati 250f Chassis with points less than 4?
SQL: SELECT "entrant" FROM "complete_formula_one_world_championship_" WHERE "engine"='maserati straight-6' AND "year"<1958 AND "chassis"='maserati 250f' AND "points"<4;

Question: What is the average year for Maserati Straight-4 Engines?
SQL: SELECT AVG("year") FROM "complete_formula_one_world_championship_" WHERE "engine"='maserati straight-4';