Pure monopolies

Pure monopolies are rare (partly because most monopolies are illegal) but there are local or regional businesses that
come close to being monopolies and there are regulated monopolies that provide goods or services but with limitations on
their ability to set price. Give examples of each type, a neat-monopoly and a regulated monopoly and suggest how their
monopoly power; that is, the lack of competition, affects the prices they charge and the service they provide.