Location, Place
Dirt makes it easy to identify your location. Even if you add an extra line to mark the ground, it's still easy. Keep that in mind and you can go from place to place.
Imagine looking at the dirt. It's a distinct color and texture, and you're able to identify your location just from that alone. Now draw that line on the ground and you'll always remember this place.
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Knowing your location from dirt is quite a feat! Who taught you that? It was Joe (じょう), the big local farmhand. Despite being a bit weird, he can identify any place just from its dirt!
Remember Joe? He's our local farmhand who only has nine toes (from the 上 mnemonic). Imagine that guy explaining to you how to know your location from dirt. He may be a bit clumsy, but the man really knows his dirt.