About: http://webisa.webdatacommons.org/86436977

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	While hydrogen sulfide is one impurity which must be removed from natural gas before its transport through a pipeline, carbon dioxide levels therein must also be reduced, for example to less than 2% from levels of perhaps 10%.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com