About: http://webisa.webdatacommons.org/292061939

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	And I do not know any direct modeling system that is able to edit (directly or indirectly) such shapes as springs, propellers, wings, cowlings, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	isicad.net