About: http://webisa.webdatacommons.org/196727157

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	wherein the read element reads an area including a mark previously provided to the magnetic disk and having a known size in the radial direction of the magnetic disk,
http://www.w3.org/ns/prov#wasQuotedFrom	google.com