About: http://webisa.webdatacommons.org/361719449

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	The map idiom is well known so this approach is arguably readable and quite understandable, i.e. xmap() is like map() but with the args and funcs transposed.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com