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_name_13 ( stage VARCHAR, winner VARCHAR, trofeo_fast_team VARCHAR, points_classification VARCHAR )

### Question ###
What is the stage of Fabiano Fontanelli, who had a Trofeo Fast Team of Gewiss Playbus and a point classification of Fabrizio Guidi?

### Accurate SQL ###

SELECT stage FROM table_name_13 WHERE trofeo_fast_team = "gewiss playbus" AND points_classification = "fabrizio guidi" AND winner = "fabiano fontanelli"