They are...
sisters
This is my...
family
He is my...
grandfather
They are my...
grandparents
He is my...
father
They are my...
parents
The sister of my father is my...
aunt
That's a...
baby
She is my...
grandmother
He is my...
brother
The children of my aunt and uncle are my...
cousins
The brother of my father is my...
uncle
She is my...
mother