Ключевые слова: advertise, aggression, assassin, attack, backdrop, background, black, blackboard, blood, board, border, chalk, chalkboard, communication, concept, crime, destruction, drawing, education, fear, forbidden, freehand, global, idea, information, killing, learning, message, no, nobody, poster, presentation, protest, red, retro, school, script, sketch, social issue, terror, terrorism, text, threat, vintage, violence, war, word, world, worn, write,