Rough Dentogram ( clustering based on segment distance )

   CE282 284  
   !  
   5--CE253 254  
   !     
   !     CE272 282  
   !     !  
   !     4--CE267 269  
   !     !     
   !     !     CE257 267  
   !     !     !  
   1-----3-----2--CE243 253  
  /
 /