Ключевые слова: advantageous, advice, aid, announcement, assistance, attention, beneficial, benefit, business, care, caring, convenient, cooperating, explanation, guidance, handy, help, helpful, helping, hint, idea, information, informations, innovation, instruction, knowledge, learn, learning, obliging, service, skill, solution, solutions, strategy, suggestion, suitable, support, supporting, supportive, technology, tip, tricks, unity, useful, valuable,