About: http://webisa.webdatacommons.org/277166746

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	limiting means including said second flat surface for limiting the rotation of said sphere within said socket,
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com