About: http://webisa.webdatacommons.org/185508754

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	At the base of the pile are materials you never see, including the nitrogen and potash used to grow your food, and the earth and rock under which your metals and minerals were once buried.??? (Worldwatch Institute, Washington DC).
http://www.w3.org/ns/prov#wasQuotedFrom	grida.no