He's a ...
doctor
He's a ...
fireman
He's a ...
farmer
She's an ... (uncle's wife)
aunt
It's an ...
ice cream
He's a ...
policeman
She's a ...
zookeeper
They're ... (not brother and sister)
cousins
He's an ... (aunt's husband)
uncle
She's a ...
teacher
He's a ...
pilot
It's a ...
tree