Assertion: double coffin | /r/MadeOf | inner coffin
Facets:
Source sentences:
text: Examples of this have been found in several Neolithic sites: the double coffin, the earliest of which was found in the Liangzhu culture (3400–2250 BC) site at Puanqiao, Zhejiang, consists of an outer and an inner coffin, while the triple coffin, with its earliest finds from the Longshan culture (3000–2000 BC) sites at Xizhufeng and Yinjiacheng in Shandong, consists of two outer and one inner coffins.