Does "önök" mean "you" Singular in a polite way, or is it the same as "ök" in a polite form?
"Your room is beside the elevator." Is the "your" one person, or many persons?
Or is it the exception form as described in Tips and Notes?
So it looks like a singular possessor, but is still plural. Second, when the possessor is a noun in the plural, like a lányok, the possessed noun loses its plural ending -(j)uk or -(j)ük:<pre>
a lányok cipője ‘the girls' shoe’ a lányok asztala ‘the girls' table'</pre>
In the Main Menü of Duolingo, where the tree is. You klick on the lesson, which you want to practice and then there is another button, which you can click on.
It is a circle with a "lamp". ;-)
Or you open the "https://duome.eu/FheWIYzE/progress" site. Replace my name with your username.