Given the task definition and input, reply with output. Generate a correct and concise answer for the question based on the words in the context.

Context : Cuore di cane (German: Warum bellt Herr Bobikow?, International title - Dog's Heart) is a 1976 joint Italian-German film directed by Alberto Lattuada based on a novel Heart of a Dog by Mikhail Bulgakov adapted by Mario Gallo.
Question : Which is the basis of Cuore di cane?
Heart of a Dog