About: http://webisa.webdatacommons.org/159647236

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 retention member 140 may comprise a flexible material, such as silicone or another biocompatible polymer material.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com