What is the Team with a Machine that is nsr250 and has Points of 8?
CREATE TABLE "grand_prix_career_statistics" (
  "year" real,
  "class" text,
  "team" text,
  "machine" text,
  "points" real,
  "wins" real
);
SELECT "team" FROM "grand_prix_career_statistics" WHERE "machine"='nsr250' AND "points"=8;