Ive been given a challenge in the book im learning Python from and its 
basically create a program with a dictionary of father - son pairs and allow 
the user to add, replace and delete pairs. Ive done that without any problems 
but ive been giving another challenge where I have to improve the previous 
program by adding a choice that lets the user enter a name and get back a 
grandfather. The program should still only use one dictionary of father-son 
pairs and finally I have to make sure to include several generations in your 
dictionary so that a match can be found. Im not sure I fully understand the 
task because surely its only possible to have one key and one value per pair 
but the challenge seems to want me to have a key (for the father), a value (for 
the son) and then something else (for the grandfather). Is this actually 
possible? Or am I just misinterpreting the challenge?

Myles Broomes
                                          
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