Kendaozu, Kang, and Youlong wrote five thousand words.
Purple gas comes from the east; The allusions of the western old gentleman to Hanguguan were first published by Venus-Li Bai, and then by Taishang old gentleman-Lao Zi.
Qi Ming, Chang Geng and Taibai are all Venus, Taibai is Li Bai's word, and the next 300 poems should be reversed.
Tao Zu, Lao Dan and Youlong (Confucius' honorifics for Lao Zi) are all Lao Zi, and the 5,000 words are posthumous title of Tao Te Ching.