About: http://webisa.webdatacommons.org/121529876

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	Originally, the supply of belts was limited by the enormous amount of time required to collect the shells and assemble them, particularly as holes had to be made in the shells with Stone Age technology ??? drills tipped with quartz.
http://www.w3.org/ns/prov#wasQuotedFrom	resilience.org