Ключевые слова: abstract, achieve, achievement, admiration, appreciation, background, black, blackboard, board, business, chalk, chalkboard, compliment, concept, congrats, decor, decoration, decorative, education, element, grateful, gratitude, gray, greetings, handwritten, high, knowledge, learn, letter, old, plain, rampart, school, structure, study, surface, teamwork, text, texture, wallpaper, white, word, written,