Rough Dentogram ( clustering based on segment distance )

    L 74  79  
   !  
   8-- L 65  73  
   !     
   7----- H 60  64  
   !        
   !         H 80  89  
   !        !  
   9--------1-- L 19  26  
   !              
   6-------------- L 51  59  
   !                 
   10---------------- L 90  98  
   !                    
   !                     H 99 107  
   !                    !  
   !                    11- H 40  50  
   !                    !     
   !                    3----- L 34  39  
   !                    !        
   !                    !         H 27  33  
   !                    !        !  
   5--------------------4--------2-- H  9  18  
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