context: Goryeo Taejo (高麗 太祖, January 31, 877 (January 14th of the lunar calendar) [1]-July 4, 943 (May 29th of the lunar calendar) [2]) was the post-Three Kingdoms It was the general of the late Goguryeo and the first king of Goryeo (reign: July 25, 918 to July 4, 943). The castle is the king, the bent building, the main building is Kaesong, the ruler is Yakcheon, Myoho is Taejo, and Shiho is Nguyen Won Myeong-ryang It is the Great King of the Great Dignity Great Wisdom Quotation. Yeonho (年 천) is Cheonsu and Neungho is Hyeonneung.
question: When is Joseon Taejo's birthday?
answers.text: January 31, 877