Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_73048 ( "Stage" real, "Winner" text, "General classification" text, "Points classification" text, "Mountains classification" text, "Young rider classification" text )

### Question ###
When danilo di luca is the winner who is the general classification?

### Accurate SQL ###

SELECT "General classification" FROM table_73048 WHERE "Winner" = 'Danilo Di Luca'