About: http://webisa.webdatacommons.org/242584268

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	Once any one device other than main memory obtains ownership of a data block, no other device may share the block and all copies of the data block which are shared are invalidated at the time ownership is obtained by the one device.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com