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

Question: What entrant drove a car with a Moore chassis prior to 1953?
SQL: SELECT "entrant" FROM "complete_formula_one_world_championship_" WHERE "year"<1953 AND "chassis"='moore';