About: http://webisa.webdatacommons.org/97856005

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	Although gel cushion 56 and 560 are illustrated as being generally oval shaped, it is to be understood that the present invention contemplates other suitable shapes, such as trapezoidal or rectangular, for the gel cushion.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com