<http://webisa.webdatacommons.org/prov/277534328>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/343198803> .
<http://webisa.webdatacommons.org/343198803>	<http://www.w3.org/ns/prov#value>	"In some cases, a fluid may be an exhaust gas, which may include substances such as hydrocarbons, NOx, CO, Hg, sulfur species, and/or particulate matter." .
<http://webisa.webdatacommons.org/343198803>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .
<http://webisa.webdatacommons.org/343198803>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .