About: http://webisa.webdatacommons.org/275570062

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	accommodate options such as the Shallco volume control or additional inputs & outputs
http://www.w3.org/ns/prov#wasQuotedFrom	bluecircle.com