Ключевые слова: 911, accident, alarm, alert, axe, building, burning, car, color, contour, department, design, detector, element, emergency, engine, equipment, evacuation, exit, extinguisher, fighter, fighting, fire, firefighter, firefighting, fireman, flame, hose, hydrant, icon, illustration, isolated, ladder, line, linear, lineart, outline, protection, red, rescue, safety, service, set, smoke, station, tool, truck, urgency, vector, water,