- From: Gregg Kellogg <gregg@greggkellogg.com>
- Date: Mon, 1 Apr 2013 11:45:34 -0700
- To: Kingsley Idehen <kidehen@openlinksw.com>
- Cc: public-rdfa@w3.org
On Apr 1, 2013, at 10:10 AM, Kingsley Idehen <kidehen@openlinksw.com> wrote: > On 4/1/13 12:59 PM, Gregg Kellogg wrote: >> On Apr 1, 2013, at 8:17 AM, Jeremy Tarling <jeremy.tarling@bbc.co.uk> wrote: >> >>> hello all >>> >>> I am trying to make an owl:sameAs assertion in some RDFa. I have the following code: >>> >>> <span rel="rnews:about" resource="http://www.bbc.co.uk/things/4c0ccb99-7042-49e5-bb44-338b540441eb#id"> >>> <span rel="owl:sameAs" resource="http://dbpedia.org/resource/Buckinghamshire_County_Council"></span> >>> </span> >>> >>> (I have declared the rnews and owl prefixes elsewhere in the doc) >>> >>> When I test it only the first statement (rnews:about bbc:thing) is being picked up by linked data extraction tools, the owl:sameAs to the corresponding dbpedia URI is being ignored. Can anyone tell me what I'm doing wrong here please? >> Using my distiller [1], If I use the followiing input: >> >> <div prefix="rnews: http://iptc.org/std/rNews/2011-10-07#"> >> <span rel="rnews:about" resource="http://www.bbc.co.uk/things/4c0ccb99-7042-49e5-bb44-338b540441eb#id"> >> <span rel="owl:sameAs" resource="http://dbpedia.org/resource/Buckinghamshire_County_Council"></span> >> </span> >> </div> >> >> I get the following output: >> >> @prefix owl: <http://www.w3.org/2002/07/owl#> . >> @prefix rnews: <http://iptc.org/std/rNews/2011-10-07#> . >> >> <> rnews:about <http://www.bbc.co.uk/things/4c0ccb99-7042-49e5-bb44-338b540441eb#id> . >> >> <http://www.bbc.co.uk/things/4c0ccb99-7042-49e5-bb44-338b540441eb#id> owl:sameAs <http://dbpedia.org/resource/Buckinghamshire_County_Council> . >> >> Looks okay to me. Note "owl" is defined in the RDFa initial context. >> >> Gregg >> >> [1] http://rdf.greggkellogg.net/distiller > > Gregg, > > Why not share a complete HTML doc skeleton as this little episode could have a lot of future utility. If you don't mind, please just place the HTML doc you used at Web accessible location (URL). > > The owl:sameAs and rdfs:sameAs scenario has already spooked me :-) Sure, I put up the document at [1] and a hook to my distiller processing the document is at [2]. Note that this example is a simple case of chaining in RDFa, where the object of a parent element becomes the subject of the child element. This works only with @rel (or @rev) and not with @property, as it's considered an /advanced/ feature. Gregg Kellogg gregg@greggkellogg.net [1] http://greggkellogg.net/sameas-example.html [2] http://rdf.greggkellogg.net/distiller?format=turtle&in_fmt=rdfa&uri=http://greggkellogg.net/sameas-example.html > Kingsley >> >>> JT >>> >>> -- >>> Jeremy Tarling >>> Data Architect, BBC News >>> Future Media News & Knowledge >>> 4th floor New Broadcasting House >>> London W1A 1AA >>> tel: 07799 510 992 >>> >> >> >> > > > -- > > Regards, > > Kingsley Idehen > Founder & CEO > OpenLink Software > Company Web: http://www.openlinksw.com > Personal Weblog: http://www.openlinksw.com/blog/~kidehen > Twitter/Identi.ca handle: @kidehen > Google+ Profile: https://plus.google.com/112399767740508618350/about > LinkedIn Profile: http://www.linkedin.com/in/kidehen > > > > >
Received on Monday, 1 April 2013 18:46:08 UTC