About: http://webisa.webdatacommons.org/82882828

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	Improve marking medium such as medium that requires special solution to wash off
http://www.w3.org/ns/prov#wasQuotedFrom	cam.ac.uk