About: http://webisa.webdatacommons.org/278044294

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	Because ref parameters allow assignments to propagate back to the caller, you would open up the possibility of allowing incompatible types being stored in your variable.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com