<http://webisa.webdatacommons.org/102567083> <http://www.w3.org/ns/prov#wasQuotedFrom> <everythingsandiego.net> . <http://webisa.webdatacommons.org/prov/66400721> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/102567083> . <http://webisa.webdatacommons.org/102567083> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/prov/453075049> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/102567083> . <http://webisa.webdatacommons.org/102567083> <http://www.w3.org/ns/prov#value> "Over the past 10 to 15 years, libraries, museums and other cultural institutions have digitized massive volumes of images and video." .