Because "13. Week 8: Part One" is a generic organizational label, it could refer to several different subjects depending on the context. To make sure I provide the right information, could you clarify which one you are looking for? Did you mean:
A specific (e.g., Computer Science, History, or Business)? 13. Week 8: Part One
A (e.g., a 12-week workout plan)? A legal or corporate project phase? Because "13