About: http://webisa.webdatacommons.org/413433866

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 got the impression that those who had trouble mainly did because they did not yet know the ???follow your nose??? proof tactic which I learned in my first upper division math class in college.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com