The colors are theirs.
THEIRS
It is her doll.
HER
They are our teachers.
OUR
It is her notebook.
HER
The red car is his.
HIS
They are their dogs.
THEIR
The house is yours.
YOURS
The english class is ours.
OURS
These are his books.
HIS
Danna has my pencil.
MY
The dog is hers.
HERS
It is your computer.
YOUR
I love my mom.
MY
The tennis shoes are mine.
MINE
It is its home.
ITS