Rough Dentogram ( clustering based on segment distance )

   AL  91  99 
   !  
   12-AH  90  90 
   !     
   11----AL  10  18 
   !        
   !        AE  72  74 
   !        !  
   !        9--AE  38  40 
   !        !     
   !        6-----AL  66  71 
   !        !        
   !        5--------AH  41  47 
   !        !           
   !        !           AL  32  37 
   !        !           !  
   !        4-----------3--AH  21  31 
   !        !                 
   !        8-----------------AH  58  65 
   !        !                    
   !        7--------------------AL  48  56 
   !        !                       
   2--------10----------------------AH  75  90 
   !                                   
   13----------------------------------AL 100 108 
   !                                      
   1--------------------------------------AL   1   9 
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