About: http://webisa.webdatacommons.org/439056572

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	problems depending on whether the graph is directed or undirected, and depending on whether you want a path or a cycle, but all of these problems are NP-complete.
http://www.w3.org/ns/prov#wasQuotedFrom	slideshare.net