About: http://webisa.webdatacommons.org/370871071

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	I was thinking about some sort of arbitrary cut-off, say only including pictures that are more than 50 years old, but I do not know for sure.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com