What is the lowest ends lost when the stolen ends for is less than 13, and stolten ends against is 6?
CREATE TABLE "standings" (
  "country" text,
  "skip" text,
  "ends_won" real,
  "ends_lost" real,
  "blank_ends_f_a" text,
  "stolen_ends_for" real,
  "stolen_ends_against" real,
  "shot_pct" real
);
SELECT MIN("ends_lost") FROM "standings" WHERE "stolen_ends_for"<13 AND "stolen_ends_against"=6;