What Competition on August 3, 2005 had a Score of 5-0?
CREATE TABLE "goals_for_senior_national_team" (
  "date" text,
  "venue" text,
  "score" text,
  "result" text,
  "competition" text
);
SELECT "competition" FROM "goals_for_senior_national_team" WHERE "score"='5-0' AND "date"='august 3, 2005';