Tl;dr gpt4 seems to have detailed knowledge of the following copyrighted books (The first half of the list) Harry Potter and the Sorcerer's Stone J.K. Rowling

Tl;dr gpt4 seems to have detailed knowledge of the following copyrighted books (The first half of the list) Harry Potter and the Sorcerer's Stone J.K. Rowling 76% 1984 George Orwell 57% The Fellowship of the Ring J.R.R. Tolkien 51% Fifty Shades of Grey E.L. James 49% The Hunger Games Suzanne Collins 48% Lord of the Flies William Golding 43% The Hitchhiker's Guide to the Galaxy Douglas Adams 43% Things Fall Apart Chinua Achebe 30% The Silmarillion J. R. R. Tolkien and Christopher Tolkien 28% Fahrenheit 451 Ray Bradbury 27% A Game of Thrones George R.R. Martin 27% The Da Vinci Code Dan Brown 26% Dune Frank Herbert 26% Their Eyes Were Watching God Zora Neale Hurston 25% To Kill a Mockingbird Harper Lee 25% Casino Royale Ian Fleming 24% Neuromancer William Gibson 22% Ender's Game Orson Scott Card 20% Brave New World Aldous Huxley 19% Gone with the Wind Margaret Mitchell 18% Do Androids Dream of Electric Sheep? Philip K. Dick 17% The Lost Symbol Dan Brown 16% Inferno Dan Brown 15% Divergent Veronica Roth 15% The Grapes of Wrath John Steinbeck 15%