About: http://webisa.webdatacommons.org/165894957

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	Scala programmers prefer to use Option types to using null, but it is easy to write an elvis operator in Scala if you want to.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com