Table schema:
CREATE TABLE table_name_71 (winner VARCHAR, stage VARCHAR, points_classification VARCHAR, trofeo_fast_team VARCHAR)

Question: Who was the winner that had a Points Classification of Giuseppe Saronni, a Trofeo Fast Team of Bianchi, and was Stage 3?
SQL: SELECT winner FROM table_name_71 WHERE points_classification = "giuseppe saronni" AND trofeo_fast_team = "bianchi" AND stage = "3"