About: http://webisa.webdatacommons.org/210968441

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	However, there is a problem that, the more additional watermarking information is embedded in the same area, the lower the likelihood (stability) of detecting the information embedded into the document image becomes.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com