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_15294880_2 (stage VARCHAR, winner VARCHAR, points_classification VARCHAR)
### Question:
How many stages were there where the winner and the points classification were Alberto Contador?
### Answer:
SELECT COUNT(stage) FROM table_15294880_2 WHERE winner = "Alberto Contador" AND points_classification = "Alberto Contador"