<http://webisa.webdatacommons.org/140573831>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<postgresql.org> .
<http://webisa.webdatacommons.org/140573831>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/436658792>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/140573831> .
<http://webisa.webdatacommons.org/140573831>	<http://www.w3.org/ns/prov#value>	"&gt; Using psql to pipe output to another program is the best example of why" .