tell me the Antonio Villaraigosa* that has a Steve Westly* of ––, and 47% for jerry brown.
CREATE TABLE "democratic_primary" (
  "poll_source" text,
  "dates_administered" text,
  "dianne_feinstein" text,
  "jerry_brown" text,
  "antonio_villaraigosa" text,
  "gavin_newsom" text,
  "john_garamendi" text,
  "jack_o_connell" text,
  "steve_westly" text,
  "bill_lockyer" text
);
SELECT "antonio_villaraigosa" FROM "democratic_primary" WHERE "steve_westly"='––' AND "jerry_brown"='47%';