Ключевые слова: achievement, answer, arrow, attempt, background, black, blackboard, board, business, chalkboard, challenge, communication, complete, concept, connect, connection, difficult, difficulty, drawing, finding, fit, font, game, hand, idea, illustration, intelligence, join, link, match, metaphor, missing, part, piece, problem, puzzle, search, shape, signs, skill, solution, solve, strategy, success, symbol, toy, try, unity, woman, yellow,