About: http://webisa.webdatacommons.org/17325405

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	Mine is setup similar to yours (except I allow anyone to register), and mine says You must be logged in to post a comment and the logged in is a link to the login page.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.org