There's a company that provides a cell phone service you have Right? All of those are man-made, artificiality brought into the woods by you, and by the very nature of being there.
携帯電話の会社もあるのだ、と わかる？　これらはみんな人工物で あなたが森に持ち込んだ人工物であり だからこそそこにあるのだ、と