About: http://webisa.webdatacommons.org/233745540

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	While this is unlikely to help with your question, what you are asking is a special case of computing the upward closure of elements in a lattice, and I wonder if there are results from there that might be useful.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com