+-----+--------+--------+--------+-------+
| Id  | Nome   | Utente | Gruppo | Padre |
+-----+--------+--------+--------+-------+
|   1 | Radice | root   | admin  |     1 | 
|  11 | Var    | root   | admin  |     1 | 
|  12 | tmp    | root   | admin  |     1 | 
|  13 | home   | root   | admin  |     1 | 
| 111 | Mail   | mail   | mail   |    11 | 
| 112 | SubM   | root   | admin  |    11 | 
| 123 | SubT   | root   | admin  |    12 | 
| 131 | rossi  | rossi  | user   |    13 | 
| 132 | verdi  | verdi  | user   |    13 | 
+-----+--------+--------+--------+-------+