What does the word who mean?
 
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                        Usage examples for who
                        
                                                            - 
                                    
                                                                                                                                    And 
                                                                                                                                                                                who 
                                                                                                                                                                                is 
                                                                                                                                                                                Bolivio?
                                                                                                                            – The Heritage of the Hills by Arthur P. Hankins
                                    
                                 
                                                            - 
                                    
                                                                                                                                    And 
                                                                                                                                                                                if 
                                                                                                                                                                                so, 
                                                                                                                                                                                who 
                                                                                                                                                                                were 
                                                                                                                                                                                they?
                                                                                                                            – The Paternoster Ruby by Charles Edmonds Walk
                                    
                                 
                                                            - 
                                    
                                                                                                                                    Now, 
                                                                                                                                                                                my 
                                                                                                                                                                                friends, 
                                                                                                                                                                                we 
                                                                                                                                                                                cannot 
                                                                                                                                                                                tell 
                                                                                                                                                                                who 
                                                                                                                                                                                left 
                                                                                                                                                                                those 
                                                                                                                                                                                tracks.
                                                                                                                            – Spotted Deer by Elmer Gregor