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x                              x
x           x               x  x
x  x                           x
x                     x        x
x                              x
x          x     e             x
                                
                                
x     x                        x
x            x        x        x
x                              x
x                              x
x                              x
x         e    x           x   x
    x                           
                                
x                 x            x
x                        x     x
x                              x
x        x                     x
x                              x
x                              x
   x        x                   
                                
x                     x        x
x                              x
x           x                  x
x   x                          x
x                         x    x
x                              x
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