Ключевые слова: background, black, blue, bridge, closed, concept, conceptual, couple, culture, day, europe, fence, friendship, group, happiness, heart, iron, key, keyhole, link, lock, locks, love, loyalty, married, metal, mutuality, object, old, outdoors, padlock, padlocks, pair, protection, railing, red, romance, romantic, rusty, safety, security, sign, silver, symbol, traditional, turquoise, unity, valentine, wedding, white,