Name the sumof points for year less than 1994 and chassis of lola lc89b
CREATE TABLE "complete_formula_one_results" (
  "year" real,
  "entrant" text,
  "chassis" text,
  "engine" text,
  "points" real
);
SELECT SUM("points") FROM "complete_formula_one_results" WHERE "year"<1994 AND "chassis"='lola lc89b';