A lot of people have published data about themselves without using a URI for themselves. This means I can't refer to them in other data. So please take a minute to give yourself a URI. If you have a FOAF page, you may just have to add rdf:about="" and voila you have a URI: http://example.com/Alan/foaf.rdf#ABC. (I suggest you use your initials for the last bit). -- Tim Berners-Lee (TwitterID: @timberners_lee).