<http://webisa.webdatacommons.org/prov/47925719>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/364407555> .
<http://webisa.webdatacommons.org/364407555>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<washingtonpost.com> .
<http://webisa.webdatacommons.org/364407555>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/364407555>	<http://www.w3.org/ns/prov#value>	"BTW -- are not vitamins a form of chemical?" .