Ключевые слова: accounting, achievement, alarm, award, background, bag, blank, board, bubble, business, button, case, chalk, chalkboard, classroom, degree, design, diploma, diplomat, display, education, equipment, flat, grades, icon, idea, illustration, isolated, list, mathematics, message, notification, object, portfolio, red, ring, ringing, school, science, set, sign, sound, suitcase, symbol, talk, white,