What is the general classification with riccardo riccò as the young rider classification?
CREATE TABLE "classification_leadership" (
  "stage" text,
  "general_classification" text,
  "points_classification" text,
  "mountains_classification" text,
  "young_rider_classification" text
);
SELECT "general_classification" FROM "classification_leadership" WHERE "young_rider_classification"='riccardo riccò';