Ключевые слова: access, admittance, architecture, background, blocked, brown, building, business, concept, door, doorway, employee, employees, enter, entrance, entry, environment, forbidden, indication, information, notice, office, old, only, outside, personnel, pictogram, protection, rampart, restriction, room, safety, security, sign, signage, space, staff, symbol, text, vintage, warning, white, wood, wooden, worker, workforce, workplace, writing, zone,