Which constituency had the conservative party win in 2003?
CREATE TABLE "snp_targets" (
  "rank" real,
  "constituency" text,
  "winning_party_2003" text,
  "swing_to_gain" real,
  "snp_s_place_2003" text,
  "result" text
);
SELECT "constituency" FROM "snp_targets" WHERE "winning_party_2003"='conservative';