Ключевые слова: alertness, architectural column, architecture, broken, cement, collapse, collapsing, column, concrete, construction, cracked, crash, damaged, danger, demolished, electricity, electricity pylon, engineer, engineering, failure, fault, fracture, illness, industry, iron, metal, mistake, old, old ruin, pole, problems, reinforcement, repairing, risk, ruined, rusty, safety, security, steel, strength, telephone line, warning sign, weathered,