Ключевые слова: 911, abstract, alarm, ambulance, assistance, background, beacon, button, call, color, colorful, communication, concept, danger, design, emergency, flat, gradient, graphic, help, icon, illustration, isolated, label, life, lifesaver, location, mark, message, object, phone, pictogram, press, push, rescue, round, safety, salvation, security, service, shape, sign, sos, support, symbol, urgency, warning, web, white,