He said, "I’m going to eat a sandwich." I asked, "What’s a sandwich?" He said, "It’s food." I asked, "What’s food?" He said, "It’s something you eat."

She told me she was going to be a doctor. I asked, "Why?" She said, "Because I like healing people." I asked, "Why?" She said, "Because I like being healthy." I asked, "What’s healthy?" She said, "It’s when you’re not sick."

He said, "I’m going to the zoo." I asked, "What’s a zoo?" He said, "It’s a place where animals live." I asked, "What’s a place?" He said, "It’s a place."