About: http://webisa.webdatacommons.org/281028503

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 optical recording medium of this type is accompanied with problems, such as a poor storage stability and a high production cost, because vapor deposition, for example, is required for forming the recording layer.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com