Can I say?
We don't say:
- I guess this is two men's house.
- I guess this is three boys' house.
- I guess this is some boys' house.
We say:
- I guess this is the house belongs to two men.
- I guess this is the house belongs to three boys.
- I guess this is the house belongs to some boys.
So, can I say:
- I guess this is the house of two men.
- I guess this is the house of three boys.
- I guess this is the house of some boys.