The document discusses various GST related issues for amusement parks and charity events. For the amusement park case study, it analyzes whether input tax credit will be available for various construction activities and components. It also examines how different ticketing options would be taxed under GST. For the charity marathon event case study, it questions whether donations collected by the trust organizing the event will be exempt from GST. Key discussion points include whether the activities can be considered charitable, and how reducing donation amounts could impact exemptions.