Is the monkey walking?
Yes, it is.
Is the monkey eating?
Yes, it is.
Is the zebra eating?
No, it isn't. It's running.
Is the zebra running?
No, it isn't. It's drinking.
Is the crocodile walking?
Yes, it is.
Is the giraffe drinking?
No, it isn't. It's eating.
Is the giraffe eating?
Yes, it is.
Is the lion drinking?
Yes, it is.
Is the crocodile eating?
No, it isn't. It's walking.
Is the monkey walking?
No, it isn't. It's eating.