About: http://webisa.webdatacommons.org/178888666

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	That could be a good or a bad thing.Frankly, for me, the digital piano is a practice and possibly recording instrument, so speakers are irrelevant.
http://www.w3.org/ns/prov#wasQuotedFrom	pianoworld.com