About: http://webisa.webdatacommons.org/184165016

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	A further obiect of this invention is to provide a tracheostomy tube which may be made of a relatively soft material, such as a plastic, instead of metal, which will considerably reduce trauma to body tissues of the patient.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk