Introduction to Object-oriented Analysis and Design Fall 2022 5. (20 points) Design patterns. This question is about two closely related design patterns, i.e., The Iterator Pattern and The Generator Pattern. We want to use these patterns to help us get AAAAA tourist attractions, given a list of attractions of all levels in China (i.e., A, AA, AAA, AAAA, and AAAAA). Read the following code carefully, and answer questions. Page 9 of 12 CONT'D