About: http://webisa.webdatacommons.org/323890060

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	It consists of a set of blades or sticks connected by rivets or other fasteners, through which the blades hinge and space apart.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com