About: http://webisa.webdatacommons.org/109352392

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	One is attached to a music source, such as a small radio or iPod, and the other is attached to an external speaker.
http://www.w3.org/ns/prov#wasQuotedFrom	science.gov