About: http://webisa.webdatacommons.org/209952067

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	Its job is mainly to take a set of intermediate key-value pairs and output a key-value pair that is basically an aggregate of all the values received by it from the mapper.
http://www.w3.org/ns/prov#wasQuotedFrom	opensourceforu.com