About: http://webisa.webdatacommons.org/382722383

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 recent years, push-button switches have been used in large numbers in such items as keyboards and electronic tuners' and they have been increasingly miniaturized.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca