The favourite subject of Britney is English.
Britney´s favourite subject is English.
The book´s page.
The page of the book.
the university education’s price is expensive.
The price of a university education is expensive.
The toys of the babies are colouful.
The babies' toys are colourful.
The dress of my sister is old.
My sister's dress is old
The hair of my cousin is blue.
My cousin's hair is blue.
the shirt’s color is pink.
The color of his shirt is pink.
The offices of the doctors are beautiful.
The doctors' offices are beautiful
Susan is the mom of Rachel.
Rachel's mom is Susan.
The mother of your sister is your mother.
Your sister's mother is your mother.
The rainbow´s colors.
The colors of the rainbow.
The books of the students are new.
The students' books are new