If a single Witch exists it can either live on its own or it can live as a member of a single Coven. In order for a single Coven to exist there must exist at least two living Witch instances. These requirements can be described using classes: 1) a single Witch; 2) a single Coven. Show the class diagram used to describe the connection between the Witch class and the Coven class. State what this type of connection is called. Do not be concerned about handling any class attributes and methods.