About: http://webisa.webdatacommons.org/454239834

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	Such input devices can include buttons, such as buttons 16 on front panel 12 as shown in FIG. 1, used to supplement the input from the knob to the device 10.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com