About: http://webisa.webdatacommons.org/439464826

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 'pure' would have two meanings, depending on whether the symbol is a variable or a function.
http://www.w3.org/ns/prov#wasQuotedFrom	digitalmars.com