About: http://webisa.webdatacommons.org/252113181

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 outer layer 199 comprises a biocompatible material such as silicone, polyurethane or ETFE.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca