About: http://webisa.webdatacommons.org/40383731

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	However, there have been problems associated with filtering systems, particularly during the expansion and collapsing of the filter within the body vessel.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk