Who used Ford v8 and Jordan 191 after 1990 and got 8 points?
CREATE TABLE "complete_formula_one_results" (
  "year" real,
  "entrant" text,
  "chassis" text,
  "engine" text,
  "points" real
);
SELECT "entrant" FROM "complete_formula_one_results" WHERE "year">1990 AND "engine"='ford v8' AND "points"=8 AND "chassis"='jordan 191';