I just have a question about the possessive case of noun. In my understanding, we use "of" to describe the possesive for nonliving things, like "in the bar of the hotel" not "the hotel's bar". We use "'s" to describe the possesive for living things, like "men's body" not "body of men".
But I don't know how could I describe the possesive for many people. For example, there are 5 people, and each of them has a foorball. What I should use "the five people's footballs", "footballs of the five people's " or "five footballs of the five people's". What if I want to describe that the teacher has stored all the 5 footballs. Can I say: "The teacher has stored all the footballs of 5 people's (they are Tom, Jerry, John, Lee, and Laura)."