About: http://webisa.webdatacommons.org/173021845

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 context must be derived, i.e. a representation to cover heterogeneity of data
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com