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_11 ( points_classification_navy_blue_jersey VARCHAR, mountains_classification_green_jersey VARCHAR, team_classification VARCHAR )

### Question ###
What is the Points Classification Navy Blue Jersey that has Yoann le Boulanger, and Gerolsteiner?

### Accurate SQL ###

SELECT points_classification_navy_blue_jersey FROM table_name_11 WHERE mountains_classification_green_jersey = "yoann le boulanger" AND team_classification = "gerolsteiner"