About: http://webisa.webdatacommons.org/40135792

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	Most systems for producing fluid flow require the application of external energy or power such as electricity, heat, animal power, or other energy sources.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es