Ключевые слова: advice, answer, ask, assessment, business, client, comment, communicate, communication, complain, complaint, concept, consumer, contact, customer, evaluate, evaluation, feedback, give, help, important, information, letter, marketing, message, motivation, opinion, quality, question, questionnaire, rating, reaction, reply, report, research, response, review, satisfaction, service, share, sign, suggestion, support, survey, symbol, testimonial, text, want, word,