Ключевые слова: 21, background, belgian, belgic, belgium, black, board, brussels, celebration, citizenship, color, country, culture, day, education, europe, european, flag, flat, freedom, history, holiday, immigration, independence, july, language, lay, light, national, nationality, nobody, object, patriotism, politics, red, sport, symbol, text, top, travel, tricolor, view, yellow,