The first category of my binary opposition, nature, is present in many aspects of this ad. First, the water in the pool. Water is natural. The two molecules of hydrogen and one molecule of oxygen make up this abundant liquid. Second, there are the large tropical-like plants placed at the opposite ends of the pool.
Plants are part of nature.
Third, look out the windows. Look past the buildings. Look at the deep blue sky, the white, soft, puffy clouds that seem to brush across the lower-level of the earth's atmosphere. Look at the water again. Right, it's in a swimming pool - a constructed, cultural idea.