About: http://webisa.webdatacommons.org/85310269

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 coupler is a head pivotally mounted on a ball joint, the head being round and fitting snugly within the inner diameter of the surface coil.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com