About: http://webisa.webdatacommons.org/410018880

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	These feeds typically contain too high a content of undesirable components, such as aromatics and compounds containing heteroatoms, particularly sulfur and nitrogen.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com