Koala Reads

""Does any of you gentlemen have a matching line for the couplet?" the emperor asked, looking at the ministers below."

"The ministers glanced at each other."

"One of them stepped forward, bowed, and said, "Your Majesty, this first line of the couplet embodies the principle of the five elements. Wood corresponds to green, metal to white, fire to red, and water to black. It also precisely corresponds to the attributes of the five elements in the four directions of north, south, east, and west. In the opinion of this old minister, this is an extremely difficult couplet!""