What is Mario Puzo's most famous book?
The Godfather.  Originally published in 1969, is a novel about a fictional crime family in New York.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: What is Mario Puzo's most famous book?
### Input: 
### Response: The Godfather.  Originally published in 1969, is a novel about a fictional crime family in New York.