About: http://webisa.webdatacommons.org/236680879

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	Machines of known types such as windmills are driven by natural elements to operate air compressors.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com