<http://webisa.webdatacommons.org/prov/323101719>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/5236589> .
<http://webisa.webdatacommons.org/prov/349735518>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/5236589> .
<http://webisa.webdatacommons.org/5236589>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/5236589>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<britannica.com> .
<http://webisa.webdatacommons.org/5236589>	<http://www.w3.org/ns/prov#value>	"Some gases, such as nitrogen oxides and phosgene, are much more insidious." .