Name the entrant for year more than 1991 and chassis of lotus 109
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">1991 AND "chassis"='lotus 109';