About: http://webisa.webdatacommons.org/334642294

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	a rectangle was cut out of blotting paper on which there was a trace of a flat particle, with about 5 mm left on each side.
http://www.w3.org/ns/prov#wasQuotedFrom	mdpi.com