About: http://webisa.webdatacommons.org/193191233

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 watermarks may be extracted from a signal or signals stored in a storage device, such as a portable storage device (e.g., optical or magnetic disk or tape, flash memory, etc.).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au