About: http://webisa.webdatacommons.org/368733276

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	Other actuators may also be used including displacement transducers, solenoids, pneumatic pistons, piezoelectric devices, oscillations set up in stepper motors or geared motor oscillation systems.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com