Rough Dentogram ( clustering based on segment distance )

   AL641 645  
   !  
   5--AH638 640  
   !     
   4-----AL586 594  
   !        
   6--------AH646 661  
   !           
   7-----------AH661 662  
   !              
   !              AH623 638  
   !              !  
   !              3--AH597 611  
   !              !     
   1--------------2-----AL612 620  
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