human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Stage, Winner, General classification, Points classification, Mountains classification, Young rider classification
###Question: When thomas löfkvist is the  young rider classification and alessandro petacchi is the points classification who are the general classifications? 
gpt
SELECT General classification FROM table WHERE Points classification = Alessandro Petacchi AND Young rider classification = Thomas Löfkvist