Hi! I don't think subcategory relationship is not recorded in Wikidata. E.g. https://www.wikidata.org/wiki/Q7361750 contains https://www.wikidata.org/wiki/Q14436424 but neither have any indication of that. The problem I guess is that category hierarchy is different on all wikis, so it's hard to have one property that expresses it on Wikidata. You could do through "subclass of" and "category's main topic" but not sure that'd capture all. E.g.: http://tinyurl.com/h7qpcdn but that only captures one subcategory, since other items don't have the same hierarchy in Wikidata. -- Stas Malyshev smalyshev(a)wikimedia.org _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata

This is what I was thinking would have already been integrated into Wikidata somehow, somewhere, ideally as a SERVICE to call in SPARQL if there were any Category Labels , maybe another serviceParam for the label Service that could take another serviceParam to retrieve the subcategories ?

Cool. Yeap, you got the idea now. OK, We'll stay tuned for a future new Service ! Schema.org and Google and the World thank you Stas :) On Thu, Oct 6, 2016 at 8:39 PM Stas Malyshev <smalyshev(a)wikimedia.org> wrote: Hi! Right now, we do not support calls out to external services, due to security issues it may produce. However, making limited API to specifically mediawiki API may be possible, it's actually an idea we haven't considered before and may be possible to do. Needs some thinking though, so don't expect it to be done by next week :) but interesting, I'll look into it. We probably will need to use generator since we'd need Wikidata IDs, but something like this: /w/api.php?action=query&format=json&prop=pageprops&generator=categorymembers&ppprop=wikibase_item&gcmtitle=Category%3AParking&gcmprop=ids%7Ctitle&gcmtype=subcat should work. It needs some code to be able to properly build and consume queries, but not impossible. -- Stas Malyshev smalyshev(a)wikimedia.org _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata

Hi Thad, One quick red flag - I'm not sure how familiar you are with the category system, but automatically parsing it without sanity-checking can very quickly lead you into a minefield. There are a substantial number of category trees which seem reasonable at first, but rapidly go in unexpected directions. For example, if you start at "Category:Road transport" on enwiki and go two categories deep, you get "Category:Parking facilities‎" - so far, so good - but you also get "Category:The Hitchhiker's Guide to the Galaxy", "Category:Songs about buses", and "Category:Cycling journalists‎". There are a few pairs of categories which contain each other directly, and a much larger number which contain each other once you go a few levels of subcategories deep & so go in endless loops. And, of course, a clean category tree in French might be a mess in German, or vice versa. None of this is to say "don't do it", but rather "don't expect it to be clean and tidy" :-) Andrew. On 7 October 2016 at 02:08, Thad Guidry <thadguidry(a)gmail.com> wrote: saying to LabelService , -- - Andrew Gray andrew.gray(a)dunelm.org.uk _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata

Class mappings are almost complete Kingsley. We were trying to get Wikidata to the point where it is easy for folks to do trivial queries right inside WDQS as part of WD Goals for 2016.

On Sat, Oct 8, 2016, 2:38 PM Kingsley Idehen &lt;kidehen(a)openlinksw.com <mailto:kidehen@openlinksw.com>> wrote: On 10/6/16 2:57 PM, Thad Guidry wrote: Hi Thad, If there are owl:equivalentClass mappings in some Linked Data Space, and the SPARQL service associated with said Data Space supports owl:equivalentClass reasoning, then the answer to your question is yes. What unknown right now is the class mappings between Wikidata and Schema.org. If a dump of those exist, the rest is trivial :) -- Regards, Kingsley Idehen Founder & CEO OpenLink Software (Home Page: http://www.openlinksw.com) Weblogs (Blogs): Legacy Blog: http://www.openlinksw.com/blog/~kidehen/ <http://www.openlinksw.com/blog/%7Ekidehen/> Blogspot Blog: http://kidehen.blogspot.com Medium Blog: https://medium.com/@kidehen Profile Pages: Pinterest: https://www.pinterest.com/kidehen/ Quora: https://www.quora.com/profile/Kingsley-Uyi-Idehen Twitter: https://twitter.com/kidehen Google+: https://plus.google.com/+KingsleyIdehen/about LinkedIn: http://www.linkedin.com/in/kidehen Web Identities (WebID): Personal: http://kingsley.idehen.net/dataspace/person/kidehen#this : http://id.myopenlink.net/DAV/home/KingsleyUyiIdehen/Public/kingsley.ttl#this _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org <mailto:Wikidata@lists.wikimedia.org> https://lists.wikimedia.org/mailman/listinfo/wikidata _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata

On 10/8/16 5:04 PM, Thad Guidry wrote: Class mappings are almost complete Kingsley. We were trying to get Wikidata to the point where it is easy for folks to do trivial queries right inside WDQS as part of WD Goals for 2016. Thad, Here is a post (brought up to date in last day) that demonstrates owl:equivalentClass reasoning and inference. Once I have a link to the new mappings I will integrate into this demo. Note, this particular LOD Cloud Cache instance has 30 Billion+ triples against which the owl:equivalentClass inference is being applied, at query evaluation time. [1] http://kidehen.blogspot.com/2014/02/class-equivalence-based-reasoning.html Kingsley On Sat, Oct 8, 2016, 2:38 PM Kingsley Idehen &lt;kidehen(a)openlinksw.com&gt; wrote: On 10/6/16 2:57 PM, Thad Guidry wrote: Hello team :) So while I'm helping with the Wikidata - Schema.org mappings, a request came in to expose subcategories of an existing Wikipedia category. For example, say I start with this topic: https://www.wikidata.org/wiki/Q27119725 Parking facilities The topic's main category is shown as "Category:Parking facilities" and that has links to Wikipedia, specifically a Wikipedia category link, and where the WP category page has subcategories that I would like to expose somehow in whichever way is *easiest* currently with our tools, apis, etc. Can it all be done in SPARQL against some services that already expose WP subcategories given a specific category ? Or is there an API that does this already ? other tools that might expose WP categories ? The IDEAL GOAL is to query 'equivalent class' = schema.org/ParkingFacility and get back the WP categories *in one shot or query or api call.* http://schema.org/ParkingFacility - Parking facilities in India <https://en.wikipedia.org/wiki/Category:Parking_facilities_in_India>‎ - Parking facilities in the United States <https://en.wikipedia.org/wiki/Category:Parking_facilities_in_the_United_States> ‎ - Aircraft hangars <https://en.wikipedia.org/wiki/Category:Aircraft_hangars>‎ - Garages (parking) <https://en.wikipedia.org/wiki/Category:Garages_%28parking%29>‎ - Railway depots <https://en.wikipedia.org/wiki/Category:Railway_depots>‎ Any gurus ? Hi Thad, If there are owl:equivalentClass mappings in some Linked Data Space, and the SPARQL service associated with said Data Space supports owl:equivalentClass reasoning, then the answer to your question is yes. What unknown right now is the class mappings between Wikidata and Schema.org. If a dump of those exist, the rest is trivial :) -- Regards, Kingsley Idehen Founder & CEO OpenLink Software (Home Page: http://www.openlinksw.com) Weblogs (Blogs): Legacy Blog: http://www.openlinksw.com/blog/~kidehen/ Blogspot Blog: http://kidehen.blogspot.com Medium Blog: https://medium.com/@kidehen Profile Pages: Pinterest: https://www.pinterest.com/kidehen/ Quora: https://www.quora.com/profile/Kingsley-Uyi-Idehen Twitter: https://twitter.com/kidehen Google+: https://plus.google.com/+KingsleyIdehen/about LinkedIn: http://www.linkedin.com/in/kidehen Web Identities (WebID): Personal: http://kingsley.idehen.net/dataspace/person/kidehen#this : http://id.myopenlink.net/DAV/home/KingsleyUyiIdehen/Public/kingsley.ttl#this _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata _______________________________________________ Wikidata mailing listWikidata@lists.wikimedia.orghttps://lists.wikimedia.org/mailman/listinfo/wikidata -- Regards, Kingsley Idehen Founder & CEO OpenLink Software (Home Page: http://www.openlinksw.com) Weblogs (Blogs): Legacy Blog: http://www.openlinksw.com/blog/~kidehen/ Blogspot Blog: http://kidehen.blogspot.com Medium Blog: https://medium.com/@kidehen Profile Pages: Pinterest: https://www.pinterest.com/kidehen/ Quora: https://www.quora.com/profile/Kingsley-Uyi-Idehen Twitter: https://twitter.com/kidehen Google+: https://plus.google.com/+KingsleyIdehen/about LinkedIn: http://www.linkedin.com/in/kidehen Web Identities (WebID): Personal: http://kingsley.idehen.net/dataspace/person/kidehen#this : http://id.myopenlink.net/DAV/home/KingsleyUyiIdehen/Public/kingsley.ttl#this _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata

On 10/9/16 1:34 PM, Thad Guidry wrote: Kingsley, The mappings are already in Wikidata (we still have a few properties left to map, but the classes are done, except for a few in pending.schema.org. You can just query them in some fashion such as this: http://tinyurl.com/h9vjqd8 Thad, Shouldn't the following query return all Classes participating in an <https://www.wikidata.org/wiki/Property:P1709> <https://www.wikidata.org/wiki/Property:P1709> relation? : SELECT ?s ?relation ?o WHERE { ?s <https://www.wikidata.org/wiki/Property:P1709> <https://www.wikidata.org/wiki/Property:P1709> ?o. BIND (<https://www.wikidata.org/wiki/Property:P1709> <https://www.wikidata.org/wiki/Property:P1709> AS ?relation) } LIMIT 100 Query Link: https://query.wikidata.org/#%0A%0ASELECT%20%3Fs%20%3Frelation%20%3Fo%0AWHER… If not, can you formulate something closer to that output which makes matters easier should you not have an RDF dump available etc.. Kingsley On Sun, Oct 9, 2016 at 11:09 AM Kingsley Idehen &lt;kidehen(a)openlinksw.com&gt; wrote: On 10/8/16 5:04 PM, Thad Guidry wrote: Class mappings are almost complete Kingsley. We were trying to get Wikidata to the point where it is easy for folks to do trivial queries right inside WDQS as part of WD Goals for 2016. Thad, Here is a post (brought up to date in last day) that demonstrates owl:equivalentClass reasoning and inference. Once I have a link to the new mappings I will integrate into this demo. Note, this particular LOD Cloud Cache instance has 30 Billion+ triples against which the owl:equivalentClass inference is being applied, at query evaluation time. [1] http://kidehen.blogspot.com/2014/02/class-equivalence-based-reasoning.html Kingsley On Sat, Oct 8, 2016, 2:38 PM Kingsley Idehen &lt;kidehen(a)openlinksw.com&gt; wrote: On 10/6/16 2:57 PM, Thad Guidry wrote: Hello team :) So while I'm helping with the Wikidata - Schema.org mappings, a request came in to expose subcategories of an existing Wikipedia category. For example, say I start with this topic: https://www.wikidata.org/wiki/Q27119725 Parking facilities The topic's main category is shown as "Category:Parking facilities" and that has links to Wikipedia, specifically a Wikipedia category link, and where the WP category page has subcategories that I would like to expose somehow in whichever way is *easiest* currently with our tools, apis, etc. Can it all be done in SPARQL against some services that already expose WP subcategories given a specific category ? Or is there an API that does this already ? other tools that might expose WP categories ? The IDEAL GOAL is to query 'equivalent class' = schema.org/ParkingFacility and get back the WP categories *in one shot or query or api call.* http://schema.org/ParkingFacility - Parking facilities in India <https://en.wikipedia.org/wiki/Category:Parking_facilities_in_India>‎ - Parking facilities in the United States <https://en.wikipedia.org/wiki/Category:Parking_facilities_in_the_United_States> ‎ - Aircraft hangars <https://en.wikipedia.org/wiki/Category:Aircraft_hangars>‎ - Garages (parking) <https://en.wikipedia.org/wiki/Category:Garages_%28parking%29>‎ - Railway depots <https://en.wikipedia.org/wiki/Category:Railway_depots>‎ Any gurus ? Hi Thad, If there are owl:equivalentClass mappings in some Linked Data Space, and the SPARQL service associated with said Data Space supports owl:equivalentClass reasoning, then the answer to your question is yes. What unknown right now is the class mappings between Wikidata and Schema.org. If a dump of those exist, the rest is trivial :) -- Regards, Kingsley Idehen Founder & CEO OpenLink Software (Home Page: http://www.openlinksw.com) Weblogs (Blogs): Legacy Blog: http://www.openlinksw.com/blog/~kidehen/ Blogspot Blog: http://kidehen.blogspot.com Medium Blog: https://medium.com/@kidehen Profile Pages: Pinterest: https://www.pinterest.com/kidehen/ Quora: https://www.quora.com/profile/Kingsley-Uyi-Idehen Twitter: https://twitter.com/kidehen Google+: https://plus.google.com/+KingsleyIdehen/about LinkedIn: http://www.linkedin.com/in/kidehen Web Identities (WebID): Personal: http://kingsley.idehen.net/dataspace/person/kidehen#this : http://id.myopenlink.net/DAV/home/KingsleyUyiIdehen/Public/kingsley.ttl#this _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata _______________________________________________ Wikidata mailing listWikidata@lists.wikimedia.orghttps://lists.wikimedia.org/mailman/listinfo/wikidata -- Regards, Kingsley Idehen Founder & CEO OpenLink Software (Home Page: http://www.openlinksw.com) Weblogs (Blogs): Legacy Blog: http://www.openlinksw.com/blog/~kidehen/ Blogspot Blog: http://kidehen.blogspot.com Medium Blog: https://medium.com/@kidehen Profile Pages: Pinterest: https://www.pinterest.com/kidehen/ Quora: https://www.quora.com/profile/Kingsley-Uyi-Idehen Twitter: https://twitter.com/kidehen Google+: https://plus.google.com/+KingsleyIdehen/about LinkedIn: http://www.linkedin.com/in/kidehen Web Identities (WebID): Personal: http://kingsley.idehen.net/dataspace/person/kidehen#this : http://id.myopenlink.net/DAV/home/KingsleyUyiIdehen/Public/kingsley.ttl#this _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata _______________________________________________ Wikidata mailing listWikidata@lists.wikimedia.orghttps://lists.wikimedia.org/mailman/listinfo/wikidata -- Regards, Kingsley Idehen Founder & CEO OpenLink Software (Home Page: http://www.openlinksw.com) Weblogs (Blogs): Legacy Blog: http://www.openlinksw.com/blog/~kidehen/ Blogspot Blog: http://kidehen.blogspot.com Medium Blog: https://medium.com/@kidehen Profile Pages: Pinterest: https://www.pinterest.com/kidehen/ Quora: https://www.quora.com/profile/Kingsley-Uyi-Idehen Twitter: https://twitter.com/kidehen Google+: https://plus.google.com/+KingsleyIdehen/about LinkedIn: http://www.linkedin.com/in/kidehen Web Identities (WebID): Personal: http://kingsley.idehen.net/dataspace/person/kidehen#this : http://id.myopenlink.net/DAV/home/KingsleyUyiIdehen/Public/kingsley.ttl#this _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata

On 10/10/16 5:31 PM, Thad Guidry wrote: Kingsley, use shortcut syntax instead. Also look at how the many examples show doing tihngs. http://tinyurl.com/hkv8z7m Thad, Not getting the point you are trying to articulate i.e., the solution isn't comprised strictly of <https://www.wikidata.org/wiki/Property:P1709> <https://www.wikidata.org/wiki/Property:P1709> relations. I am assuming <https://www.wikidata.org/wiki/Property:P1709> <https://www.wikidata.org/wiki/Property:P1709> identifies equivalentClass relations i.e., <https://www.wikidata.org/wiki/Property:P1709> <https://www.wikidata.org/wiki/Property:P1709> owl:equivalentProperty owl:equivalentClass . You should be able to articulate the equivalent of the following, using SPARQL against Wikidata: SELECT DISTINCT ?s ?relation ?o WHERE { ?s owl:equivalentClass ?o. BIND (owl:equivalentClass AS ?relation) FILTER (isIRI(?s)) FILTER (isIRI(?o)) } LIMIT 100 Live Solution Link: http://lod.openlinksw.com/sparql?default-graph-uri=&query=SELECT+DISTIN… Kingsley On Mon, Oct 10, 2016 at 1:50 PM Kingsley Idehen &lt;kidehen(a)openlinksw.com&gt; wrote: On 10/9/16 1:34 PM, Thad Guidry wrote: Kingsley, The mappings are already in Wikidata (we still have a few properties left to map, but the classes are done, except for a few in pending.schema.org. You can just query them in some fashion such as this: http://tinyurl.com/h9vjqd8 Thad, Shouldn't the following query return all Classes participating in an <https://www.wikidata.org/wiki/Property:P1709> <https://www.wikidata.org/wiki/Property:P1709> relation? : SELECT ?s ?relation ?o WHERE { ?s <https://www.wikidata.org/wiki/Property:P1709> <https://www.wikidata.org/wiki/Property:P1709> ?o. BIND (<https://www.wikidata.org/wiki/Property:P1709> <https://www.wikidata.org/wiki/Property:P1709> AS ?relation) } LIMIT 100 Query Link: https://query.wikidata.org/#%0A%0ASELECT%20%3Fs%20%3Frelation%20%3Fo%0AWHER… If not, can you formulate something closer to that output which makes matters easier should you not have an RDF dump available etc.. Kingsley On Sun, Oct 9, 2016 at 11:09 AM Kingsley Idehen &lt;kidehen(a)openlinksw.com&gt; wrote: On 10/8/16 5:04 PM, Thad Guidry wrote: Class mappings are almost complete Kingsley. We were trying to get Wikidata to the point where it is easy for folks to do trivial queries right inside WDQS as part of WD Goals for 2016. Thad, Here is a post (brought up to date in last day) that demonstrates owl:equivalentClass reasoning and inference. Once I have a link to the new mappings I will integrate into this demo. Note, this particular LOD Cloud Cache instance has 30 Billion+ triples against which the owl:equivalentClass inference is being applied, at query evaluation time. [1] http://kidehen.blogspot.com/2014/02/class-equivalence-based-reasoning.html Kingsley On Sat, Oct 8, 2016, 2:38 PM Kingsley Idehen &lt;kidehen(a)openlinksw.com&gt; wrote: On 10/6/16 2:57 PM, Thad Guidry wrote: Hello team :) So while I'm helping with the Wikidata - Schema.org mappings, a request came in to expose subcategories of an existing Wikipedia category. For example, say I start with this topic: https://www.wikidata.org/wiki/Q27119725 Parking facilities The topic's main category is shown as "Category:Parking facilities" and that has links to Wikipedia, specifically a Wikipedia category link, and where the WP category page has subcategories that I would like to expose somehow in whichever way is *easiest* currently with our tools, apis, etc. Can it all be done in SPARQL against some services that already expose WP subcategories given a specific category ? Or is there an API that does this already ? other tools that might expose WP categories ? The IDEAL GOAL is to query 'equivalent class' = schema.org/ParkingFacility and get back the WP categories *in one shot or query or api call.* http://schema.org/ParkingFacility - Parking facilities in India <https://en.wikipedia.org/wiki/Category:Parking_facilities_in_India>‎ - Parking facilities in the United States <https://en.wikipedia.org/wiki/Category:Parking_facilities_in_the_United_States> ‎ - Aircraft hangars <https://en.wikipedia.org/wiki/Category:Aircraft_hangars>‎ - Garages (parking) <https://en.wikipedia.org/wiki/Category:Garages_%28parking%29>‎ - Railway depots <https://en.wikipedia.org/wiki/Category:Railway_depots>‎ Any gurus ? Hi Thad, If there are owl:equivalentClass mappings in some Linked Data Space, and the SPARQL service associated with said Data Space supports owl:equivalentClass reasoning, then the answer to your question is yes. What unknown right now is the class mappings between Wikidata and Schema.org. If a dump of those exist, the rest is trivial :) -- Regards, Kingsley Idehen Founder & CEO OpenLink Software (Home Page: http://www.openlinksw.com) Weblogs (Blogs): Legacy Blog: http://www.openlinksw.com/blog/~kidehen/ Blogspot Blog: http://kidehen.blogspot.com Medium Blog: https://medium.com/@kidehen Profile Pages: Pinterest: https://www.pinterest.com/kidehen/ Quora: https://www.quora.com/profile/Kingsley-Uyi-Idehen Twitter: https://twitter.com/kidehen Google+: https://plus.google.com/+KingsleyIdehen/about LinkedIn: http://www.linkedin.com/in/kidehen Web Identities (WebID): Personal: http://kingsley.idehen.net/dataspace/person/kidehen#this : http://id.myopenlink.net/DAV/home/KingsleyUyiIdehen/Public/kingsley.ttl#this _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata _______________________________________________ Wikidata mailing listWikidata@lists.wikimedia.orghttps://lists.wikimedia.org/mailman/listinfo/wikidata -- Regards, Kingsley Idehen Founder & CEO OpenLink Software (Home Page: http://www.openlinksw.com) Weblogs (Blogs): Legacy Blog: http://www.openlinksw.com/blog/~kidehen/ Blogspot Blog: http://kidehen.blogspot.com Medium Blog: https://medium.com/@kidehen Profile Pages: Pinterest: https://www.pinterest.com/kidehen/ Quora: https://www.quora.com/profile/Kingsley-Uyi-Idehen Twitter: https://twitter.com/kidehen Google+: https://plus.google.com/+KingsleyIdehen/about LinkedIn: http://www.linkedin.com/in/kidehen Web Identities (WebID): Personal: http://kingsley.idehen.net/dataspace/person/kidehen#this : http://id.myopenlink.net/DAV/home/KingsleyUyiIdehen/Public/kingsley.ttl#this _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata _______________________________________________ Wikidata mailing listWikidata@lists.wikimedia.orghttps://lists.wikimedia.org/mailman/listinfo/wikidata -- Regards, Kingsley Idehen Founder & CEO OpenLink Software (Home Page: http://www.openlinksw.com) Weblogs (Blogs): Legacy Blog: http://www.openlinksw.com/blog/~kidehen/ Blogspot Blog: http://kidehen.blogspot.com Medium Blog: https://medium.com/@kidehen Profile Pages: Pinterest: https://www.pinterest.com/kidehen/ Quora: https://www.quora.com/profile/Kingsley-Uyi-Idehen Twitter: https://twitter.com/kidehen Google+: https://plus.google.com/+KingsleyIdehen/about LinkedIn: http://www.linkedin.com/in/kidehen Web Identities (WebID): Personal: http://kingsley.idehen.net/dataspace/person/kidehen#this : http://id.myopenlink.net/DAV/home/KingsleyUyiIdehen/Public/kingsley.ttl#this _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata _______________________________________________ Wikidata mailing listWikidata@lists.wikimedia.orghttps://lists.wikimedia.org/mailman/listinfo/wikidata -- Regards, Kingsley Idehen Founder & CEO OpenLink Software (Home Page: http://www.openlinksw.com) Weblogs (Blogs): Legacy Blog: http://www.openlinksw.com/blog/~kidehen/ Blogspot Blog: http://kidehen.blogspot.com Medium Blog: https://medium.com/@kidehen Profile Pages: Pinterest: https://www.pinterest.com/kidehen/ Quora: https://www.quora.com/profile/Kingsley-Uyi-Idehen Twitter: https://twitter.com/kidehen Google+: https://plus.google.com/+KingsleyIdehen/about LinkedIn: http://www.linkedin.com/in/kidehen Web Identities (WebID): Personal: http://kingsley.idehen.net/dataspace/person/kidehen#this : http://id.myopenlink.net/DAV/home/KingsleyUyiIdehen/Public/kingsley.ttl#this _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata

On 10/11/16 2:48 PM, Thad Guidry wrote: Kingsley, You might ask others on the list who could help more with providing the WD - Schema.org mappings or get them into a format that you want...or an RDF dump file. I just don't have the knowledge to assist you with that via SPARQL. (i.e., I am not a SPARQL guru) -Thad _______________________________________________ Wikidata mailing listWikidata@lists.wikimedia.orghttps://lists.wikimedia.org/mailman/listinfo/wikidata Thad, Having figured out how the Wikidata SPARQL endpoint works, here are the mappings between Wikidata and Schema.org using owl:equivalentClass and owl:equivalentProperty relations. Basically, I am using SPARQL-FED to produce the desired result using a variety of RDF related document types (JSON-LD. RDF-Turtle, HTML5+Microdata, and XHTML+RDFa). We will load this into the DBpedia DBMS which will make this data available via SPARQL and relevant Linked Data pages, now that the new 2016-04 release is live [1]. ##### Equivalent Property Relations Generation ##### PREFIX wdt: <http://www.wikidata.org/prop/direct/> <http://www.wikidata.org/prop/direct/> CONSTRUCT {?s owl:equivalentProperty ?o} WHERE { SERVICE <http://query.wikidata.org/sparql> <http://query.wikidata.org/sparql> { SELECT ?s ?equivalentProperty ?o WHERE { ?s wdt:P1628 ?o . BIND (wdt:P1628 as ?equivalentProperty) FILTER( REGEX(STR(?o), "schema.org")) } } } Live Links: [1] http://linkeddata.uriburner.com/sparql?default-graph-uri=&query=PREFIX+… -- JSON-LD [2] http://linkeddata.uriburner.com/sparql?default-graph-uri=&query=PREFIX+… -- RDF-Turtle [3] http://linkeddata.uriburner.com/sparql?default-graph-uri=&query=PREFIX+… [4] http://linkeddata.uriburner.com/sparql?default-graph-uri=&query=PREFIX+… -- XHTML+RDFa ##### Equivalent Class Relations Generation ##### PREFIX wdt: <http://www.wikidata.org/prop/direct/> <http://www.wikidata.org/prop/direct/> CONSTRUCT {?s ?equivalentClass ?o} WHERE { SERVICE <http://query.wikidata.org/sparql> <http://query.wikidata.org/sparql> { SELECT ?s ?equivalentClass ?o WHERE { ?s wdt:P1709 ?o . BIND ( wdt:P1709 as ?equivalentClass) FILTER( REGEX(STR(?o), "schema.org")) } } } ## Explicit Remapping to owl:equivalentClass relations ## which enables better reasoning and inference oriented data PREFIX wdt: <http://www.wikidata.org/prop/direct/> <http://www.wikidata.org/prop/direct/> CONSTRUCT {?s owl:equivalentClass ?o} WHERE { SERVICE <http://query.wikidata.org/sparql> <http://query.wikidata.org/sparql> { SELECT ?s ?equivalentClass ?o WHERE { ?s wdt:P1709 ?o . BIND ( wdt:P1709 as ?equivalentClass) FILTER( REGEX(STR(?o), "schema.org")) } } } Live Links: [1] http://linkeddata.uriburner.com/sparql?default-graph-uri=&query=PREFIX+… -- JSON-LD [2] http://linkeddata.uriburner.com/sparql?default-graph-uri=&query=PREFIX+… -- RDF-Turtle [3] http://linkeddata.uriburner.com/sparql?default-graph-uri=&query=PREFIX+… -- HTML+Microdata [4] http://linkeddata.uriburner.com/sparql?default-graph-uri=&query=PREFIX+… -- XHTML+RDFa Links: [1] DBpedia 2016-04 Announcement -- Regards, Kingsley Idehen Founder & CEO OpenLink Software (Home Page: http://www.openlinksw.com) Weblogs (Blogs): Legacy Blog: http://www.openlinksw.com/blog/~kidehen/ Blogspot Blog: http://kidehen.blogspot.com Medium Blog: https://medium.com/@kidehen Profile Pages: Pinterest: https://www.pinterest.com/kidehen/ Quora: https://www.quora.com/profile/Kingsley-Uyi-Idehen Twitter: https://twitter.com/kidehen Google+: https://plus.google.com/+KingsleyIdehen/about LinkedIn: http://www.linkedin.com/in/kidehen Web Identities (WebID): Personal: http://kingsley.idehen.net/dataspace/person/kidehen#this : http://id.myopenlink.net/DAV/home/KingsleyUyiIdehen/Public/kingsley.ttl#this _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata