$ pm_1148640_xml_parse.pl
Select a book category:
1. Fiction
2. History
3. Exit
Enter selection: 9
Invalid selection [9]
Enter selection: 1
Select a Fiction book:
1. Sci-Fi
2. Detective
3. Back to Categories
Enter selection: 3
Select a book category:
1. Fiction
2. History
3. Exit
Enter selection: 2
Select a History book:
1. Modern
2. Ancient
3. Back to Categories
Enter selection: 2
You selected the History book: 'Ancient'