About: http://webisa.webdatacommons.org/353525263

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	Existential Type: your comment begs the exact same reply with macros, except that five years is probably optimistic, and twenty years is an underestimate.
http://www.w3.org/ns/prov#wasQuotedFrom	racket-lang.org