Who was the winner that had a Points Classification of Giuseppe Saronni, a Trofeo Fast Team of Bianchi, and was Stage 3?
CREATE TABLE "classification_leadership_by_stage" (
  "stage" text,
  "winner" text,
  "general_classification" text,
  "points_classification" text,
  "trofeo_fast_team" text
);
SELECT "winner" FROM "classification_leadership_by_stage" WHERE "points_classification"='giuseppe saronni' AND "trofeo_fast_team"='bianchi' AND "stage"='3';