About: http://webisa.webdatacommons.org/171533105

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 include nitrogen, carbon disulfide, carbon monoxide, methane and other similar hydrocarbon gases, and ozone, and unreactive mixtures of these gases and atmospheric gases.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com