Ключевые слова: advertise, advertisement, backgroud, black, blackboard, board, book, business, chalk, chalkboard, concept, conceptual, crop, cut, cutout, education, frame, freehand, handwritten, idea, isolated, knowledge, learn, lesson, magazine, man, message, news, newspaper, notice, noticeboard, post, press, publishing, read, school, silhouette, slate, tablet, text, white, whiteboard, wood, wooden, word, write,