About: http://webisa.webdatacommons.org/30433557

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	Often, particularly in guitar amps, the pre - and post are integral, sometimes split physically with a 'send/return'.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com