About: http://webisa.webdatacommons.org/280646733

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	The location of the obstruction will generally be known, and in fact the obstruction may be imaged by fluoroscopy or other technique.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au