What is the sum of Against, when Status is "Six Nations", and when Date is "30/03/2003"?
CREATE TABLE "2003" (
  "opposing_teams" text,
  "against" real,
  "date" text,
  "venue" text,
  "status" text
);
SELECT SUM("against") FROM "2003" WHERE "status"='six nations' AND "date"='30/03/2003';