In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.
Q: Harry Potter and the Half-Blood Prince is the sixth and penultimate novel in the "Harry Potter" series, written by British author J. K. Rowling. Set during protagonist Harry Potter's sixth year at Hogwarts, the novel explores the past of Harry's nemesis, Lord Voldemort, and Harry's preparations for the final battle against Voldemort alongside his headmaster and mentor Albus Dumbledore. Question: Who is Harry's nemesis in the Half-Blood Prince? Answer: Lord Voldemort
A:
Harry Potter and the HalfBlood Prince is the sixth and penultimate novel in the Harry Potter series, written by British author J. K. Rowling.