<http://webisa.webdatacommons.org/prov/98366830>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/175691757> .
<http://webisa.webdatacommons.org/175691757>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/335846215>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/175691757> .
<http://webisa.webdatacommons.org/175691757>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/175691757>	<http://www.w3.org/ns/prov#value>	"Exhaust gas emitted from an internal combustion engine such as an automobile engine includes such substances as nitrogen oxides (NOx), carbon monoxide (CO) and hydrocarbons (HC)." .