Rough Dentogram ( clustering based on segment distance )

   AE  36  38 
   !  
   5--AE  29  31 
   !     
   4-----AL  32  35 
   !        
   6--------AL  39  47 
   !           
   !           AL  25  27 
   !           !  
   3-----------2--AL  14  24 
   !                 
   1-----------------AL   5  13 
  /
 /