About: http://webisa.webdatacommons.org/217376151

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	Commercial activated carbon is produced from organic materials such as coal, lignite, wood, nut shells, peat, pitches and cokes.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com