| Name | Description | Type | Additional information | 
|---|---|---|---|
| ProductID | integer | 
                             None.  | 
                |
| PreferenceID | integer | 
                             None.  | 
                
| Name | Description | Type | Additional information | 
|---|---|---|---|
| ProductID | integer | 
                             None.  | 
                |
| PreferenceID | integer | 
                             None.  |