About: http://webisa.webdatacommons.org/210059711

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	It may be smooth or it may have means to help retain it in its position such as ribs, teeth, barbs, threads, and/or an expanding anchor arrangement or other suitable means.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk