Is this her cat?
Yes, it is
Is this her dog?
No, it isn't
Is this her hat?
No, it isn't
Is this his umbrella
No, it isn't
Is this her book?
Yes, it is
Are these their balloons?
Yes, they are
Is this his hat?
Yes, it is
Is this her book?
No, it isn't
Is this her umbrella?
No, it isn't
Is this his ball?
Yes, it is
Is this his dog?
Yes, it is