279694
None of the bodies appeared to have been incinerated ; some had been carelessly buried without any grave goods , while others had received wooden coffins or had at least been put on planks before the inhumation , while some had been inserted into stone coffins made of flat slabs of stone .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None