Ключевые слова: activity, background, black, board, brown, business, challenge, closeup, competition, concept, cross, education, family, figure, fun, game, hobby, leisure, lose, noughts, o, object, old, ox, paper, pencil, plan, play, recreation, retro, school, sign, space, square, sudoku, symbol, table, tac, text, tic, tiles, toe, toy, vintage, win, wood, wooden, word, x, young,