About: http://webisa.webdatacommons.org/416437292

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, if there is an unused block in the operational volume 115, a block in the virtual volume corresponding to this unused block also becomes an unused block.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com