About: http://webisa.webdatacommons.org/12868746

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	I am trying to verify that a parameter is an instance of a specific class in Rails:
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com