About: http://webisa.webdatacommons.org/270040460

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 national system can also work for materials that are mainly traded within Sweden (e.g., glass and gravel).
http://www.w3.org/ns/prov#wasQuotedFrom	mdpi.com