About: http://webisa.webdatacommons.org/29198730

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	A fourth embodiment, shown in FIG. 6, is a helmet-like configuration constructed of a non-ferromagnetic material, such as plastic or aluminum, with permanent magnets attachable thereto.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com