As mgoetzke challenges, change the names of the items to something different, but the same puzzle. If it fails with "fox, hen, seeds" instead of "wolf, goat, ca

As mgoetzke challenges, change the names of the items to something different, but the same puzzle. If it fails with "fox, hen, seeds" instead of "wolf, goat, cabbage" then it wasn't reasoning or applying something learned to another case. It was just regurgitating from the training data.