About: http://webisa.webdatacommons.org/131175217

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	In general, it is preferred to use a metal stent, such as those manufactured from stainless steel, gold, titanium or the like, but plastic or other appropriate materials may be used.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com