About: http://webisa.webdatacommons.org/410727467

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	???s means mistakenly including leading or trailing spaces will not cause a validation error, and clean() will remove those spaces.
http://www.w3.org/ns/prov#wasQuotedFrom	github.com