<http://webisa.webdatacommons.org/134960822>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<stackoverflow.com> .
<http://webisa.webdatacommons.org/134960822>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/134960822>	<http://www.w3.org/ns/prov#value>	"This will cache the data he is returned by imgtag.php -- if that data is an image, the header will be on that image ; and it will get cached." .
<http://webisa.webdatacommons.org/prov/367739256>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/134960822> .