About: http://webisa.webdatacommons.org/36006659

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	On further investigation, it was established that many unprepared surfaces, such as surfaces of various types of paper, cardboard and plastic, show the same effect.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com