About: http://webisa.webdatacommons.org/201977476

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 materials such as polyethylene and polypropylene could be substituted such plastics are usually somewhat harder and thus do not offer as much patient comfort as the softer and more flexible materials.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com