Not interesting. There is no "Wu Ding" or "Ding Wu" in the combination of stems and branches of the five elements in Feng Shui (including the five elements in the eight characters). If we talk about a single character, then: Wu: The five elements belong to Yang Fire, due south, the zodiac sign Horse, one of the twelve earthly branches. 1; Ding: The five elements belong to yin fire, south, and one of the ten heavenly stems.