b                                                   
                                                    
                                                    
                                                    
                                                    
                                                    
            K             ∆                         
                                                    
          ∆                   ∆                     
                                                    
             r l      ..                            
                     ##.#      .......$#            
                     ....      ........#            
                     ....#    .........#            
                     #.#.##   .........#            
                     #.#..#  #.........#            
                     #.#..####.........#            
                     #................S#            
                     #.................#            
        ∆            #<................#            
                     #.(...............####         
                     +....................#         
            #........#...)†...............#         
           ##........##...................#         
            ......... #.####........).....#         
             .......###+## #..............#         
              #..........###..............#         
              #...........................#         
              #...................###+#####         
              #...†...............#                 
  ∆           ######..............#                 
                   #..............#            w    
                .  #..............#                 
                ...####...........#                 
                ........S.........#                 
                .............###...   K             
                .......S.....#  ....                
                ...###.....###                      
                ..   #.$...#                        
                .    #.....#                    ∆   
                     #.....#                   ∆    
                     #.....#                        
                     #......                r       
                                    K        S      
                                                    
                                                    
                                                   b
                                                    
                                                    
                                                    
                                                    
                                                    
                   g                    K           
                ∆                                   
                        w       ∆                   
                                            ∆