About: http://webisa.webdatacommons.org/175848785

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	sphere 16 to rotate within the socket, but to be limited in that rotation to a desired amount, such as approximately 15.degree. in any direction.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com