About: http://webisa.webdatacommons.org/200918748

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	Thus differences in surface chemistry, the presence of areas which contain impurities, such as corrosion products, and areas which have been contaminated can be located and defined by the use of the present invention.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com