Ключевые слова: answer, argument, background, brain, building, business, challenge, choice, community, complete, complex, concept, connect, cooperation, development, diagram, different people, difficult, element, evidence, finish, fit, incomplete, infographics, investigation, jigsaw, management, missing, network, partnership, peace, positive, presentation, problem, puzzle, reflection, research, search, solutions, solving, statistics, strategy, symbol, system, task, teamwork, time, together, vacancy, work,