In Polish the section titled "Possesion" lesson 3, the description does not match the content. It looks like lesson 2. Please advise.
Actually, the forms of a given word that are shown in the descriptive box are rather random. Not that they change, but the algorythm just chose some of the forms when the tree was created and they're shown now.
The system is a complicated thing and I guess only the people that created it understand perfectly how it works ;)