“I allow sauna sheds.” They built the sauna sheds on a low base. They were flooded. “I allow you to raise the base.” The mound collapsed. “I allow you to construct three kinds of raised foundations: raised foundations of brick, stone, and wood.” It was difficult to get up to the sauna sheds. “I allow three kinds of stairs: stairs of brick, stone, and wood.” People fell down while climbing the stairs. “I allow rails.” Grass and dust fell into the sauna sheds.