Ключевые слова: abstract, black, building, canalization, circle, city, construction, danger, dark, dirty, drain, fix, foot, hole, infrastructure, ladder, maintenance, man, manhole, open, pathway, pavement, people, polluted, pollution, red, repair, road, round, scene, sewer, sidewalk, sign, slum, street, tarmac, telecom, town, tubes, underground, walk, warning, waterway, waterworks, way, white, work, zebra,