What is the Outcome when christophe rochus was partner, on 31 july 2005?
CREATE TABLE "doubles_7_2_titles_5_runners_up" (
  "outcome" text,
  "date" text,
  "surface" text,
  "partner" text,
  "opponents" text,
  "score" text
);
SELECT "outcome" FROM "doubles_7_2_titles_5_runners_up" WHERE "partner"='christophe rochus' AND "date"='31 july 2005';