About: http://webisa.webdatacommons.org/226694226

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	OTOH, if the OP were a student dealing with an arbitrarily imposed constraint (find a way to do it without recursion), this would be a valid solution.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com