Ключевые слова: answer, asking, assistance, background, blackboard, board, business, businessman, chalk, chalkboard, communication, concept, confused, confusion, decision, design, draw, education, help, human, idea, information, male, man, manager, mark, message, office, people, problem, professional, question, shape, sign, single, solution, success, support, symbol, team, teamwork, think, thinking, uncertainty, white, why, work, worker,