About: http://webisa.webdatacommons.org/441526508

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	I suspect the answer is the same one for why are popular NoSQL databases, such as MongoDB, are re-inventing text indexing? (see MongoDB 2.4 Release)
http://www.w3.org/ns/prov#wasQuotedFrom	durusau.net