Ключевые слова: abstract, alternate, background, banner, billboard, blackboard, blank, book, chalk, chalkboard, character, chat, cloud, communication, concept, content, conversation, converse, design, detail, discourse, empty, exchange, frame, graphic, icon, label, lecture, man, message, pattern, people, say, script, sign, speak, speech, substance, swap, symbol, tag, talk, text, texture, title, voice, white, woman, word, writing,