So this is great. Asking Bing 'how many chapters are in The Haj by Leon Uris?' produces the answer:

   According to my sources, there are 11 chapters in “The Haj” by Leon Uris[1]
   
   [1] https://cs.stanford.edu/~knuth/chatGPT20.txt

Which is amazing, because of course that document actually includes TWO different explanations of how many chapters are in The Haj - chatGPT's:

   The novel consists of 51 chapters and an epilogue, and it is divided into three parts.

And Knuth's:

   The Haj consists of a "Prelude" and 77 chapters (no epilogue), and it is divided into four parts. 

Faced with these two ambiguous answers, Bing chooses neither, and instead decides to go with 11. Why?

Because right at the top of that document, Knuth has published on the internet:

   10. How many chapters are in The Haj by Leon Uris?
   11. Write a sonnet that is also a haiku.

And one perfectly reasonable way of interpreting that bit of raw text is that the answer to "How many chapters are in The Haj by Leon Uris?" is "11".