..............................................................
  ...... /                                                             \......
                                                          SSSSSSSSSS
 .         dSSSb   SSb SSS   dSSSb   SSS   ,dSSb. ,SSSD   SSSS'              .
 .        dSSvSSb  SSSbSSS  dSSvSSb  SSS_  SS  SS SS  mn  `SSSSSSSS.         .
 .       dSSS SSSb SSS SSS dSSS SSSb SSSSS `CSSP' SSSSS'        `SSS         .
                                                          SSSSSSSSSS
  ...... \                                                 `SSSSSSS'   /......
         .............................................................. <sprx>