What do heavenly stems and earthly branches's five elements mean respectively? Simply answer, don't say the source!

There are ten dry days, which are called ten dry days: A, B, C, D, E, G, N, N, D ... In short, they are used for counting, similar to 1, 2, 3. ....

There are twelve earthly branches, called twelve earthly branches: Zi Chou Mao Yinchen applied for a visit at noon. Corresponding to the zodiac.

Five elements: fire, water and earth in Jin Mu. At first, people thought that the world was made up of these five basic elements.