<http://webisa.webdatacommons.org/143342787>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/249380932>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/143342787> .
<http://webisa.webdatacommons.org/143342787>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<metafilter.com> .
<http://webisa.webdatacommons.org/143342787>	<http://www.w3.org/ns/prov#value>	"And are you using sed?posted by cerebus19 at 10:52 AM on December 14, 2006 And as a naughty, naughty tag on; does anyone have a quick and easy way to strip out everything else in a file except for URLs?" .