Ключевые слова: abstract, background, building, business, challenge, color, completing, concept, connect, connection, development, difficulty, fit, game, group, idea, incomplete, jigsaw, join, link, metaphor, missing, object, opportunity, part, partnership, piece, problem, puzzle, shape, solution, solve, strategy, success, symbol, team, teamwork, test, together, toy one, white, work, yellow,