About: http://webisa.webdatacommons.org/293196929

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	Ordinarily, gases such as nitrogen, carbon dioxide and steam will represent a major portion of the gas.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es