the text, also known as Classic of Changes, excavated in 1977 from the Shuanggudui archeological site is called what?
Shuanggudui: Shuanggudui () is an archeological site located near Fuyang in China's Anhui province. Shuanggudui:  Excavated in 1977, it was found to contain a large number of texts written on bamboo strips, including fragments of the "Classic of Poetry" and the "Songs of the South", a text on breathing exercises, a "year table" () recounting historical events, a manual on dogs, a version of the "I Ching" ("Yijing") that differs from the received one, and artifacts including the oldest known cosmic board, a divinatory instrument.
i don't know