Imagine that you are creating a program to help legislators organize new

laws. Each law has multiple subsections and clauses that account for nuances.

However, some parts of the law should never be overruled.

You are writing a class called PrivateProperty that defines the fundamental principles

of lawful private land ownership. Define a void method called requiresDeed that

prints "Landowners must be able to present a document of ownership that is

signed and stamped by the local authorities.". Make sure that any subclasses

inheriting the PrivateProperty class, cannot override the requiresDeed method.