What is the sum of Races, when Series is Toyota Racing Series, and when Podiums is greater than 3?
CREATE TABLE "career_summary" (
  "season" text,
  "series" text,
  "races" real,
  "wins" real,
  "poles" real,
  "f_laps" real,
  "podiums" real,
  "points" real,
  "position" text
);
SELECT SUM("races") FROM "career_summary" WHERE "series"='toyota racing series' AND "podiums">3;