About: http://webisa.webdatacommons.org/253552796

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	A system according to claim 4 wherein said item is a document and said visible pattern is a seal stamp.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es