About: http://webisa.webdatacommons.org/6342884

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	In general, body support devices have been manufactured by covering an assembly of coiled springs with a combination of polyurethane foam and/or matting which is enclosed in a cover made of ticking or other material.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com