<http://webisa.webdatacommons.org/prov/10811709>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/229539845> .
<http://webisa.webdatacommons.org/229539845>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<worldphoto.org> .
<http://webisa.webdatacommons.org/229539845>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/229539845>	<http://www.w3.org/ns/prov#value>	"Just the fact that the centres exist shows that there is a problem." .