Ключевые слова: architecture, channel, collector, concept, concrete, corridor, danger, dark, death, decay, deep, digger, dirt, dirty, drain, ecology, empty, environment, environmental, escape, flooded, flow, flowing, hole, industrial, industry, inside, mud, mystery, passage, perspective, pipe, pipeline, plant, pollution, round, sewage, sewer, sewerage, stinky, stream, subterranean, tube, tunnel, underground, urban, voronezh, wall, wastewater, water,