About: http://webisa.webdatacommons.org/21772546

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	This use of manufactured rock, which was no doubt accompanied by the crafting of wood and vine and twine and other materials which unfortunately do not survive in the fossil record, is in fact why we call those times the stone ages".
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com