Ключевые слова: answer, ask, assistance, background, blackboard, blank, board, business, chalk, chalkboard, character, concept, copy, copyspace, drawing, drawn, education, empty, faq, frequently, graphic, handwriting, help, icon, idea, image, information, interrogation, knowledge, learning, mark, message, point, problem, question, question mark, questionmark, school, sign, space, support, symbol, text, white, write,