Task: Question Understanding
Input (English): 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?
Output (English): based on