genitive case
I was walking down the street and saw the friend of my brother eating pastel.
I was walking down the street and saw my brother's friend eating pastel.
I have got a new kind of turkey stuffing from the supermarket, but the stuffing that the mother of my friend makes is better.
I have got a new kind of turkey stuffing from the supermarket, but my mother's friend is better.
Are the bowls of the dogs filled with meatballs?
Ate the dogs' bowls filled with meatballs