About: http://webisa.webdatacommons.org/130253642

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	Surface contamination, for example by fluids such as moisture and oil, change the optical properties of the surface.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk