what is the average rank when the day 1 is less than 71 and the country is romania?
CREATE TABLE "qualification_round" (
  "rank" real,
  "athlete" text,
  "country" text,
  "day_1" real,
  "total" real
);
SELECT AVG("rank") FROM "qualification_round" WHERE "day_1"<71 AND "country"='romania';