Instruct: Classify Amazon reviews into positive or negative sentiment
Query: 'Connecticut Yankee,' plus sex

Similar storyline to Twain's 'Connecticut Yankee in King Arthur's Court' - only this time, it's a Polish engineer in 13th century Poland.It's a fun read, although I found it a bit convenient that the hero was an engineer - it would have been much more fun & challenging if the hero only had a rudimentary knowledge of how things worked.A similar book to these that I'd also reccommend is 'Enchantment' by Orson Scott Card. That book and the Stargard series are the only time-travelling in Poland fantasy books I'm aware of.