About: http://webisa.webdatacommons.org/115788989

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 tree is defined as a set of edges (for some fixed vertex set) such that they connect the vertices (e.g. the tree is a connected graph) and the set is independent in the sense that there are no cycles.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com