About: http://webisa.webdatacommons.org/173883673

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	The backward picture is a picture whose display time is later than that of the target picture, and it is positioned backward the target picture on the display time axis.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk