what is the sum of silver when the rank is 3, nation is france and bronze is less than 0?
CREATE TABLE "medal_table" (
  "rank" real,
  "nation" text,
  "gold" real,
  "silver" real,
  "bronze" real,
  "total" real
);
SELECT SUM("silver") FROM "medal_table" WHERE "rank"=3 AND "nation"='france' AND "bronze"<0;