Which 1st (m) is the lowest one that has a Nationality of aut, and Points larger than 273.5?
CREATE TABLE "willingen" (
  "rank" real,
  "name" text,
  "nationality" text,
  "1st_m" real,
  "2nd_m" real,
  "points" real,
  "overall_wc_points_rank" text
);
SELECT MIN("1st_m") FROM "willingen" WHERE "nationality"='aut' AND "points">273.5;