In what Venue was the game with a Friendly Competition and 1 Goal played?
CREATE TABLE "thomas_buffel_international_goals" (
  "goal" real,
  "date" text,
  "venue" text,
  "score" text,
  "result" text,
  "competition" text
);
SELECT "venue" FROM "thomas_buffel_international_goals" WHERE "competition"='friendly' AND "goal"=1;