Ключевые слова: analysis, assessment, attractive, axis, background, bad, bokeh, business, chart, cheerful, comparison, concept, cube, customer service, emotion, evaluation, excellent, experience, expression, face, feedback, good, happiness, happy, information, management, marketing, opinion, positive, quality, questionnaire, ranking, report, result, review, sad, satisfaction, smile, survey, technology, user, virtual screen, volume, wood block,