About: http://webisa.webdatacommons.org/363064595

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	Alternatively, an attachment including a leg inclined forwardly and a telescoping brace which permits adjustment of the angle of inclination of the prone board relative to the floor.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com