Ключевые слова: advice, background, building, closeup, concepts, danger, dark, direction, doorway, electricity, emergency, end, escape, evacuation, exit, fire, fluorescent, guidance, help, idea, illuminated, indoors, information, inside, instruction, interior, label, leading, leave, leaving, lighted, nobody, order, out, public, route, safety, security, sign, signal, symbol, toward, trapped, urban, urgency, vertical, vibrant, warning, words,