The class Linked List , as described in Sections 9.2.1 and 9.2.2 of Chapter 9 , does not contain a method get Position that returns the position number of a given entry. Define a descendant of Linked List that has a method get Position as well as methods that insert and remove items by their values instead of their positions. This new insertion method should always insert the new entry at the beginning of the list. Although the items in this list are not sorted, the new ADT is analogous to the ADT sorted list, which contains the method get Position.