Ключевые слова: art, atom, clipboard, color, colorful, contour, danger, document, education, equipment, eyeglasses, fahrenheit, form, hazard, hot, icon, idea, illustration, injection, isolated, lamp, lens, library, light, line, linear, literature, measurement, medical, meter, molecular, molecule, needle, outline, particle, pop, popart, rocket, science, set, space, style, symbol, technology, temperature, toxic, travel,