Who was awarded mountains classification when Alessandro petacchi won? 
CREATE TABLE table_25551880_2 (mountains_classification VARCHAR, winner VARCHAR)
SELECT mountains_classification FROM table_25551880_2 WHERE winner = "Alessandro Petacchi"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_25551880_2 (mountains_classification VARCHAR, winner VARCHAR) Question: Who was awarded mountains classification when Alessandro petacchi won?  [/INST] SELECT mountains_classification FROM table_25551880_2 WHERE winner = "Alessandro Petacchi" </s>