Ключевые слова: address, anniversary, atlantic ocean, bill, business, card, celebration, communication, concept, congratulation, copy space, correspondence, delivery, design, document, email, exchange, green, greenland, greenland flag, greeting, iceland, investment, invitation, leaves, letter, letter of happiness, mail, massage, message, modern, national, national holiday, nationality, notebook, paper, payment, pen, pictogram, post office, postage, postcard, registration, relaxing, retro postage, spa, symbol, tourism,