Error Alert

I've been marking a variety of scripts from schools all over the world just lately and there've been the usual blunders here and there to provoke the odd chuckle. Coming across a reference to Cherry Orchard a novel written by Tolstoy elicited a wry smile, but the smile sort of faded as I found the error repeated, except crediting the text as a play, and one or two even giving it its full title, which was a bit of relief, in every script I marked that mentioned it from the school involved. Which led me to the inescapable but horrifying conclusion that this was what their teacher had told them. Did no one think to look at the cover?!