About: http://webisa.webdatacommons.org/300070276

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	Although this arrangement gives useful results in many cases, it has been found in practice that serious leakage problems can occur at the inlet and outlet openings, particularly in the case of low-viscosity second media.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com