About: http://webisa.webdatacommons.org/251292648

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	Alternative embodiments could employ pistons or other types of members that are disposed to move in other directions (for example vertically, diagonally),
http://www.w3.org/ns/prov#wasQuotedFrom	google.com