About: http://webisa.webdatacommons.org/341302429

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	Invisible watermarks are marks, such as copyright symbols, logos, serial numbers, etc., that are embedded into digital or printed images in a way which is not easily discernible to the unaided eye.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com