About: http://webisa.webdatacommons.org/130680482

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	First thing: IMO emplacing keys and constraints on a transport structure such as your dataset is a bad idea.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com