About: http://webisa.webdatacommons.org/71638433

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	I suspect these chart types were added because customers or arge prospects asked for them.
http://www.w3.org/ns/prov#wasQuotedFrom	perceptualedge.com