Many FOAF files leverage other vocabulary such as http://purl.org/dc/elements/1.1/, http://xmlns.com/wot/0.1/, etc.
Given a FOAF file, how to write SPARQL that can do the following? 1. List all statements that use foaf vocabulary such as foaf:name, foaf:mbox, etc? 2. List all statements that do *not* use foaf vocabulary? Thanks in advance for your help. Best, -- On Lee
