About: http://webisa.webdatacommons.org/249909730

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	Listeners were invited to join in the experiments in such unheard of things as stereo broadcasting, years before there were any stereo records.
http://www.w3.org/ns/prov#wasQuotedFrom	wdrcobg.com