About: http://webisa.webdatacommons.org/65979150

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 appliance of the invention is suitably formed of a flexible material such as silicone or PVC material which may readily deflect to fit the mouth of the user.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es