About: http://webisa.webdatacommons.org/175205371

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	Directives are stuff that affect the shapes, such as color settings, point size, line type, arrow heads, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com