If you give a dog a ball, he'll be really happy.
If you give a dog a ball, he'll be really happy
If the dog is really happy, he'll want to play.
If he plays, he'll get really tired.
If he's tired, he's going to take a nap.
If he takes a nap, he'll need someone to wake him up.
If someone wakes him up, he won't be happy.
If he's not happy, you'll need something to make him happy.
If you need to make him happy, you should give him a ball.