About: http://webisa.webdatacommons.org/89375159

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	Apparatus according to claim 1 wherein the object is a helmet, and the computation circuitry is operative to determine the orientation of the head of a person wearing the helmet.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au