How fast does the BMW with 6 points go?
CREATE TABLE "1972_isle_of_man_sidecar_500cc_tt_final_" (
  "place" real,
  "rider" text,
  "country" text,
  "machine" text,
  "speed" text,
  "time" text,
  "points" real
);
SELECT "speed" FROM "1972_isle_of_man_sidecar_500cc_tt_final_" WHERE "machine"='bmw' AND "points"=6;