What's this?
It's sand.
What's this?
It's a river.
What's this?
It's a bridge.
What's this?
It's a lake.
What's this?
It's a forest.
What's this?
It's a road.
What's this?
It's a hill.
What's this?
It's a path.
What are these?
They're leaves.
What's this?
It's grass.