Who is she? (twin sister)
She's my twin sister.
Who is he? (uncle)
He's my uncle.
Who are they? (aunts)
They're my aunts.
Who is he? (twin brother)
He's my twin brother.
Who is she? (daughter)
She's my daughter.
Who is he?
He's my father.
Who are they? (daughters)
They're my daughters.
Who is she? (aunt)
She's my aunt.
Who are they?
They're my grandparents.
Who is he? (cousin)
He's my cousin.
Who are they? (parents)
They're my parents.
Who are they? (sons)
They're my sons.
Who is she?
She's my mother.
Who are they? (uncles)
They're my uncles.