About: http://webisa.webdatacommons.org/409528125

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	There are cases when you want for example another column to determine the type of the valid values, but in this question I am considering only the unrestricted case.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com