What is the total bronze with a Silver of 2, and a Gold smaller than 0?
CREATE TABLE "sporting_events" (
  "rank" real,
  "nation" text,
  "gold" real,
  "silver" real,
  "bronze" real,
  "total" real
);
SELECT SUM("bronze") FROM "sporting_events" WHERE "silver"=2 AND "gold"<0;