What is the lowest first half when the score is larger than 621 and the rank 35?
CREATE TABLE "ranking_round" (
  "rank" real,
  "archer" text,
  "1st_half" real,
  "2nd_half" real,
  "score" real
);
SELECT MIN("1st_half") FROM "ranking_round" WHERE "score">621 AND "rank"=35;