Both!

Xander and I were looking out the window today, talking about what we could see. I said, I could see the sky with clouds in it and asked Xander what could he see? He looked and said excitedly, "Trees!" I said I could see grass and the street. I then asked him if he could see a truck or a car? He looked out the window, thought for a moment and then emphatically looked at me and said, "Both!" Indeed he did.