About: http://webisa.webdatacommons.org/390308732

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	If you allow it to enclose problems such as does it halt on all words ?, then it is already undecidable for pushdown automata.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com