About: http://webisa.webdatacommons.org/6752402

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 this case, it is enough to modify the sound generating unit into such a circuitry as shown in FIG. 18.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com