About: http://webisa.webdatacommons.org/80130890

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	Below is an example of how type safety can also be obtained by using private constructors, static instantiation methods and type checking:
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com