Name the least point for mv agusta and rank of 13th for wins less than 0
CREATE TABLE "motorcycle_grand_prix_results" (
  "year" real,
  "class" text,
  "team" text,
  "points" real,
  "rank" text,
  "wins" real
);
SELECT MIN("points") FROM "motorcycle_grand_prix_results" WHERE "team"='mv agusta' AND "rank"='13th' AND "wins"<0;