About: http://webisa.webdatacommons.org/439592855

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	However, solid parts and built-up structures are generally relatively heavy which may limit their utility, such as by undesirably increasing the weight of the resulting aircraft.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com