About: http://webisa.webdatacommons.org/102871487

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	G is a tree since we are not allowed to insert points into T. (ref: http://www.inf.fu-berlin.de/lehre/SS09/AG/skript.html) (written in german)
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com