_____________              _____________              _____________
|             |            |             |            |             |
|     433     |    <-->    |     446     |    ....    |     222     |
|_____________|            |_____________|            |_____________|

[" SAID -->
                                                    SIM1]

[SAID -->  " SIM1]
                                 [" SAID <-->
                          
                                    SIM1]

                                                [SAID -->  " SIM1]
                                                         [SAID -->  " SI
M1]
                                  ["DO <-->  YOU]
[SAID -->  SIM1 -->  "]
[SAID -->  SIM1 -->
     "]
                        [SAID <-->  SIM1 <-->  "]