Ключевые слова: analysisagement, analysisufacturer, assurance, benefits, business, certificate, commercial, communication, control, conversation, customer, durability, extension, guarantee, insurance, longterm, marketing, network, organization, perforanalysisces, planning, plaque, pledge, pointing, post, prize, product, promise, promotion, proof, quality, retail, reward, sale, satisfaction, service, shop, social, standards, store, technology, verified,