Rough Dentogram ( clustering based on segment distance )

    L 42  45  
   !  
   7-- H 38  41  
   !     
   8----- H 46  51  
   !        
   9-------- L 52  60  
   !           
   6----------- L  7  12  
   !              
   !               E 67  70  
   !              !  
   !              11- E 61  64  
   !              !     
   !              !      E 32  36  
   !              !     !  
   !              10----5-- E  2   6  
   !              !           
   !              2----------- H 13  28  
   !              !              
   !              12------------- H 73  84  
   !              !                 
   !              !                  L 29  31  
   !              !                 !  
   1--------------3-----------------4-- H 28  28  
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