What floor does a 73-year-old cow live on?

Cattle and five elements belong to wood, so you can choose the floor with five elements of wood, fire, water and soil. The five elements of the floor have river chart formula, one or six water, two or seven fire, three or eight trees, four or nine gold and fifty soil, each floor corresponds to the corresponding attributes, and so on for more than ten floors. Floor geomantic omen is an important factor affecting building geomantic omen, but we should pay more attention to the external geomantic environment and internal geomantic environment of the building. The detailed judgment method can be understood by Baidu Hou Zongyuan.