About: http://webisa.webdatacommons.org/204494785

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	This could define call (env) which would make it a rack app. However, I want to use Rack::Builder and map different kinds of URLs, according to my needs.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com