Rough Dentogram ( clustering based on segment distance )

   AE  46  50 
   !  
   7--AE  35  40 
   !     
   5-----AE  24  29 
   !        
   !        AE  54  56 
   !        !  
   !        9--AE   3   5 
   !        !     
   !        8-----AL  51  53 
   !        !        
   3--------2--------AL  17  23 
   !                    
   4--------------------AL  30  34 
   !                       
   6-----------------------AL  41  45 
   !                          
   1--------------------------AL   6  15 
  /
 /