About: http://webisa.webdatacommons.org/339856349

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	MongoDB seems to be considered one of the most easy to get up to speed on, although I always thought CouchDB's API was very straight-forward, particularly if you are familiar with HTTP already.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com