About: http://webisa.webdatacommons.org/198202758

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	As mentioned previously, various solvents or other additives can also be added to aid in extraction of hydrocarbon products from the oil shale and can often also increase fluidity.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au