About: http://webisa.webdatacommons.org/290959710

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	In this type of situation, the cost of separating the inert gases, such as carbon dioxide and nitrogen from the methane using conventional separation means, may be prohibitive.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com