Jean: Where's sally, Jack?
Jack: She is in the garden, Jean.
Jean: What's she doing?
Jack: She is sitting under the tree.
Jean: Is Tim in the garden, too?
Jack: Yes, he is.
He is climbing the tree.
Jean: I beg your pardon.
Who is climbing the tree?
Jack: Tim is.
Jean: What about the dog?
Jack: The dog is in the garden too.
It is running across the grass.
It is running after a cat.