Ключевые слова: analyzing, article, assurance, auction, balance, best, block, businessman, certificate, commerce, commitment, concept, control, covenant, customer, earn, economy, era, exploration, finance, glass, guarantee, holding, home, information, invest, investment, laptop, list, marketing, media, money, news, newspaper, office, product, promise, quality, sale, satisfaction, service, sign, stamp, support, symbol, text, toy, undertaking business, warranty,