Ключевые слова: assistance, attention, braille, business, button, call, caution, closeup, concepts, conceptual, control, curve, disaster, emergency, exclamation, help, ideas, image, insurance, isolated, large, letters, marine, nautical, object, panic, push, red, request, rescue, safety, security, service, services, shipwreck, shutoff, sign, single, sos, space, support, switch, symbol, urgency, warning, work, wreck,