About: http://webisa.webdatacommons.org/73676715

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	??A prehistoric period when weapons and tools were made of stone or of organic materials such as bone, wood, or horn??
http://www.w3.org/ns/prov#wasQuotedFrom	oxforddictionaries.com