About: http://webisa.webdatacommons.org/148852931

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	Also, I do not know if I am entirely convinced they avoid all forms of choice - it may be they are relying on some weak form of choice (aside from excluded middle).
http://www.w3.org/ns/prov#wasQuotedFrom	mathoverflow.net