Who was the young rider classification when Diego Ulissi won? 
CREATE TABLE table_28538368_2 (young_rider_classification VARCHAR, winner VARCHAR)
SELECT COUNT(young_rider_classification) FROM table_28538368_2 WHERE winner = "Diego Ulissi"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_28538368_2 (young_rider_classification VARCHAR, winner VARCHAR) Question: Who was the young rider classification when Diego Ulissi won?  [/INST] SELECT COUNT(young_rider_classification) FROM table_28538368_2 WHERE winner = "Diego Ulissi" </s>