Ключевые слова: abc, atom, attract, attraction, bag, black, brain, business, case, chemical, clock, cogwheel, compass, concept, contour, design, diplomat, drawing, education, engineering, font, formula, gear, geometry, glass, hour, human, icon, isolated, letter, line, linear, magnet, mind, molecular, molecule, outline, portfolio, sand, school, science, set, structure, symbol, time, timer, tool,