Who was the mountain classification winner in the stage won by Alessandro Ballan?
CREATE TABLE table_22917458_15 (mountains_classification_klasyfikacja_górska VARCHAR, winner VARCHAR)
SELECT mountains_classification_klasyfikacja_górska FROM table_22917458_15 WHERE winner = "Alessandro Ballan"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_22917458_15 (mountains_classification_klasyfikacja_górska VARCHAR, winner VARCHAR) Question: Who was the mountain classification winner in the stage won by Alessandro Ballan? [/INST] SELECT mountains_classification_klasyfikacja_górska FROM table_22917458_15 WHERE winner = "Alessandro Ballan" </s>