About: http://webisa.webdatacommons.org/423735194

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	A directed graph is a graph in which arcs may have a direction, as indicated by the arrowheads in FIG. 13.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com