Ключевые слова: abc, abstract, alphabet, background, challenge, communication, concept, conceptual, contrast, dark, details, difficulty, dramatic, factory, firm, font, hale, hard, idea, industrial, inscription, intelligence, iron, keyword, letter, lettering, letters, machine, message, metal, nobody, robust, rusted, shadow, sign, solid, spell, steel, strength, strong, sturdy, symbol, table, technology, text, title, tough, vintage, white, word,