15 questions
the car of John
Johns' car
Johns car
John's car
the room of the girls
girl's room
girls' room
girls's room
clothes for men
mens' clothes
man's clothes
men's clothes
the boat of the sailors
the sailors' boat
the sailor´s boat
the sailors's boat
The pages of a book
A books's pages
A books' pages
A book's pages
the toys of the children
the childrens toys
the children's toys
the childrens' toys
the rulers of the teachers
the teachers's rulers
the teachers' rulers
the teacher´s rulers
the bicycle of joshua
joshuas' bicycle
joshua's bicycle
joshuas's bicycle