¹                                              ²                             ,    ³                              ⁴                      ,            ⁵                      ⁶                          ⁷          ,           ⁸      ,       ,               ⁹                                    ¹⁰                 "    ?"                    ¹¹                ¹²  ,                        ¹³                ¹⁴    ,                                    ¹⁵               ¹⁶                           ¹⁷                                ,            ¹⁸     ?                 ,                 ¹⁹     ,                            ²⁰                            