Which Opponents have a Partnering of alessandro motti, and a Date of 12 september 2005?
CREATE TABLE "doubles_15" (
  "date" text,
  "tournament" text,
  "surface" text,
  "partnering" text,
  "opponents" text,
  "score" text
);
SELECT "opponents" FROM "doubles_15" WHERE "partnering"='alessandro motti' AND "date"='12 september 2005';