How many bronze medals did the team have with 0 total silver and less than 3 total medals?
CREATE TABLE "world_championships_total_medals" (
  "rank" text,
  "nation" text,
  "gold" real,
  "silver" real,
  "bronze" real,
  "total" real
);
SELECT "bronze" FROM "world_championships_total_medals" WHERE "total"<3 AND "silver">0;