There are four cats. They live in four houses. One day this cat is very very hungry. But there isn't anything to eat. He goes to his neighbor to ask if he has some mice to eat.
"Hello, I am hungry. Have you got any mice?"
"Yes, come in. "
And they are eating. The third cat can hear them. He is hungry too. He comes over. Now three cats are eating mice. The fourth cat can hear them. He comes over too. Now four cats are eating mice.
