About: http://webisa.webdatacommons.org/36180022

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	In a further embodiment, the user can manipulate ???virtual controls ???intended to resemble physical buttons, switches, sliders, knobs, or other types of controls.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com