About: http://webisa.webdatacommons.org/181175225

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	The lightweight, portable circles are made up of various materials including but not limited to aluminum, silver, gold and nickel, all of which are extracted from the Earth.
http://www.w3.org/ns/prov#wasQuotedFrom	sustainablog.org