About: http://webisa.webdatacommons.org/112555910

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	>>>(so for example any formula being able to cite any other formula or itself).
http://www.w3.org/ns/prov#wasQuotedFrom	w3.org