About: http://webisa.webdatacommons.org/60009421

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	They are therefore used in hydraulic systems in such places as theatres and opera houses.
http://www.w3.org/ns/prov#wasQuotedFrom	dta.eu