About: http://webisa.webdatacommons.org/85110159

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Due to the increased need to harvest and process plants, ground stone and polished stone artifacts became much more widespread, including tools for grinding, cutting, and chopping.
http://www.w3.org/ns/prov#wasQuotedFrom	schools-wikipedia.org