3D, AD, ATANASOV, BACKGROUND, BILLBOARD, BLANK, BOARD, BUSINESS, BUSSINESS, CARBON, CHART, CLASSROOM, CLICH, COPY, DATA, DEAL, DEALINGS, DEDUCTION, DUPLICATE, EASEL, EDUCATION, EDUCATIONAL, ESTABLISHMENT, FACTS, FALSIFICATION, FLIP, FLIPCHART, FRONT, IMAGE, IMITATION, INFORMATION, INFORMATIONS, INSTITUTION, ISOLATED, JOB, KNOWLEDGE, LABOR, LESSON, MARKER, MILE, OCCUPATION, OF, OFFICE, ON, PAD, PAGE, PAPER, PHOTOCOPY, PICTURE, PLAGIARISM, PRESENTATION, PROFESSION, SCHOOL, SHEET, SPACE, STAND, STATIONERY, SUBSTRATUMS, TEMPLATE, TRANSACTION, UNINHABITED, UNIVERSITY, VIEW, WHEEL, WHITE, WHITEBOARD, WORK,