Ключевые слова: advertisement, advice, agreement, assistance, best, block, business, certificate, choice, choose, client, comparison, control, creativity, cube, customer, emoticon, emotion, enjoyment, examining, excellent, feedback, give, good, happy, icon, joy, marketing, perfection, performance, playing, positive, positive emotion, product, quality, questionnaire, ranking, rating, review, sadness, satisfaction, service, sign, smiling, support, symbol, three, toy, trust, wood,