About: http://webisa.webdatacommons.org/270982748

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	I will try to make a small writeup and post it either here or on AoPS (to make the pictures there is a piece of cake and here even posting code is a headache).
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com