About: http://webisa.webdatacommons.org/42049599

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	If these functions are used on an empty set of values, the COUNT function will return 0 and other functions return NULL.
http://www.w3.org/ns/prov#wasQuotedFrom	sourceforge.net