Ключевые слова: abstract, accept, analysis, approve, background, bad, banner, business, choice, choose, communication, compare, concept, confirm, customer, direction, dislike, emotion, evaluation, experience, feedback, happiness, happy, health, idea, internet, like, marketing, media, negative, no, online, positive, positivity, product, quality, rating, review, sad, satisfaction, service, sign, strategy, success, survey, symbol, unhappy, user, web, website,