Got it. I'm ok(actually I like this idea) that new words can be deduced, but I'd like to know the detailed result of the new words(update in the book too), so I can keep going based on those. Otherwise if I deduced incorrectly, I'll keep deducing more and more wrong answer...
Also I'm not sure if the deduced answer is the only answer. I remember I deduced the word but the result was not correct... Maybe I made a mistake but again if the result can be shown to player, they can have more idea what they did wrong and how to improve for next question.