The fact that Early Mandarin Chinese in the 14 th -15 th century is close to modern Mandarin Chinese in the numbers and types of tones does not necessarily indicate that the tonal values are identical with each other in the two different periods of Chinese.
when transcribing the tonal values of the selected entries, I will pay more attention to categories instead of the real tonal value, even though the tonal values of modern Mandarin Chinese tones are also helpful in determining the categories.