| 1 | 
                                
                                    who are keen on solving it | 
                                
                                
                                    
                                 | 
                            
                        
                            
                                | 2 | 
                                
                                    who are not very interested in solving it | 
                                
                                
                                    
                                 | 
                            
                        
                            
                                | 3 | 
                                
                                    who are doing all they can in solving it | 
                                
                                
                                    
                                 | 
                            
                        
                            
                                | 4 | 
                                
                                    who are letting no one stand in their way of solving it | 
                                
                                
                                    
                                 | 
                            
                        
                            
                                | 5 | 
                                
                                    who are not doing so much for solving it | 
                                
                                
                                    
                                 | 
                            
                        
                            
                                | 6 | 
                                
                                    who are clearly making sure nothing is done in solving it | 
                                
                                
                                    
                                 |