Ключевые слова: access, accessories, accident, area, attention, black, blackboard, caution, chemical, concept, construction, crime, criminal, crisis, danger, dangerous, end, forbidden, frame, industrial, investigation, isolated, lines, lockdown, measure, object, objective, objects, photo, photographer, police, protection, quarantine, ribbon, safety, scene, scenery, security, sign, site, stop, stripe, symbols, tape, template, warning, yellow, zone,