Ключевые слова: 1, 1st, agenda, arranged, background, beginning, block, business, calendar, calender, concept, conceptual, cubes, daily, date, day, deadline, desk, diary, education, first, holiday, home, indoors, job, labor, labour, lifestyle, may, month, number, office, organization, organizer, plan, planner, planning, reminder, schedule, selfeducation, spring, start, symbol, time, white, wooden, work, yellow,