About: http://webisa.webdatacommons.org/72144341

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	The contact ring may comprise a compliant or semi-compliant material, (i.e. rubber, latex, silicone, brushes, UHMWPE, and similar polymers or other materials).
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca