Rough Dentogram ( clustering based on segment distance )

   FH 119 121 
   !  
   11-FH 104 119 
   !     
   !     FL  37  45 
   !     !  
   !     3--FH  34  36 
   !     !     
   !     9-----FL  93 101 
   !     !        
   !     !        FL  84  92 
   !     !        !  
   !     7--------8--FH  80  83 
   !     !              
   !     !              FH  54  62 
   !     !              !  
   !     6--------------5--FL  46  53 
   !     !                    
   !     4--------------------FH  65  80 
   !     !                       
   !     !                       FH  19  34 
   !     !                       !  
   10----2-----------------------1--FH   5  17 
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