Ключевые слова: accident, aid, alert, attention, banner, beware, business, businessman, button, care, careful, caution, concept, construction, danger, dangerous, emergency, employee, equipment, first, hazard, health, help, industrial, industry, job, label, man, message, occupational, precaution, pressing, prevention, professional, protection, protective, regulation, rescue, risk, safe, safety, secure, security, symbol, technology, virtual, warn, warning, work, workplace,