About: http://webisa.webdatacommons.org/388304274

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	Well, we explicitly tell them that you can have different variable types with the same name.
http://www.w3.org/ns/prov#wasQuotedFrom	perl.org