What is the sum of the races in the 2007 season, which has more than 4 podiums?
CREATE TABLE "career_summary" (
  "season" text,
  "series" text,
  "team" text,
  "races" real,
  "wins" real,
  "poles" real,
  "podiums" real,
  "points" real,
  "position" text
);
SELECT SUM("races") FROM "career_summary" WHERE "podiums">4 AND "season"='2007';