what is the points when the entrant is brabham racing organisation, the year is 1964 and the chassis is brabham bt7?
CREATE TABLE "complete_formula_one_world_championship_" (
  "year" real,
  "entrant" text,
  "chassis" text,
  "engine" text,
  "points" text
);
SELECT "points" FROM "complete_formula_one_world_championship_" WHERE "entrant"='brabham racing organisation' AND "year"=1964 AND "chassis"='brabham bt7';