About: http://webisa.webdatacommons.org/310626758

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	Thus, adding or exchanging recording media in both types of systems is difficult when the systems are enclosed in a sealed casing to prevent dust contamination.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk