Ключевые слова: advice, agree, answer, assessment, book, bookmark, card, closeup, collection, color, colorful, comment, communicate, communication, complain, complaint, concept, criticism, criticize, debate, education, evaluation, experiment, experimental, feedback, goal, group, impression, inform, information, knowledge, marketing, message, multicolor, opinion, pile, questionnaire, reaction, relevant, reply, respond, review, row, satisfaction, service, sign, stack, survey, textbook, word,