<http://webisa.webdatacommons.org/441610403>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/441610403>	<http://www.w3.org/ns/prov#value>	"string is an identifier, a single-quoted string is a literal; and" .
<http://webisa.webdatacommons.org/prov/20537201>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/441610403> .
<http://webisa.webdatacommons.org/441610403>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<postgresql.org> .