 
         
     
     
     
     1d
                                            
                                        
                        
                        1d
                    
                     
     
     2d
                                            
                                        
                        
                        2d
                    
                     
             
         2d
                                            
                                        
                        
                        2d
                    
                     
     
     
     
                         
                     
                     
                     
                 5d
                                            
                                        
                        
                        5d
                    
                     
             
         
                     
                 
                     
                                         
                 
    