About: http://webisa.webdatacommons.org/283345657

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	There are also schemes that support checking whether the encrypted text contains a particular keyword (e.g., this paper), though the threat model and what is accomplished is a bit different.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com