Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_12261714_2 (winner VARCHAR, young_rider_classification VARCHAR, stage VARCHAR)
### Question:
Who's the winner in stage 1a, where the leader in the young rider classification is Francesco Casagrande?
### Answer:
SELECT winner FROM table_12261714_2 WHERE young_rider_classification = "Francesco Casagrande" AND stage = "1a"