Oops !  one more thing about the mappings that I forgot to mention to all. Which is very important.

http://pending.schema.org 

That is were schema.org holds its work-in-progress or review of a draft idea for Classes (Types) and Properties.

We have already mapped several of them that are currently in http://pending.schema.org and those also show in the Schema.org-WD mappings.
There is some usefulness for doing this ahead of time, so that way we can see upcoming overlap and raise issues on either WD or Schema.org side.
BUT NOTE: http://pending.schema.org is not a final view or official release and so those particular mappings against that subdomain MIGHT BE SUBJECT TO CHANGE IN THE FUTURE.

As already mentioned in our Schema.org issue, We (Thad and others) will continue to update the mappings inside Wikidata as we go forward with Schema.org changes and releases and where things move out of pending and into our current release.


On Mon, Oct 17, 2016 at 1:45 PM Thad Guidry <thadguidry@gmail.com> wrote:
Nice Kingsley!  Great work.  So now....the bad news and where we need further help still :)

I do want to let everyone know however that within Classes and Properties...there are a slight few mappings that were taken as an opinionated view

I.E. they may slightly conflict with other views of the mappings in Languages that are not English. Or might not seem correctly mapped or aligned.
But I think most folks know that around here and deal with that everyday in Wikipedia and Wikidata.

Still, we encourage all communities to review the Schema.org-WD mappings and voice any issues, errors, mistakes, or alternative viewpoints in this Wikidata mailing list or the Schema.org mailing list or our Schema.org Github issues.

Thad
+ThadGuidry


On Mon, Oct 17, 2016 at 1:26 PM Kingsley Idehen <kidehen@openlinksw.com> wrote:
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


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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/>

CONSTRUCT {?s owl:equivalentProperty ?o} 
WHERE { SERVICE <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+wdt%3A+%3Chttp%3A%2F%2Fwww.wikidata.org%2Fprop%2Fdirect%2F%3E+%0D%0A%0D%0ACONSTRUCT+%7B%3Fs+owl%3AequivalentProperty+%3Fo%7D++%0D%0AWHERE+%7B+SERVICE+%3Chttp%3A%2F%2Fquery.wikidata.org%2Fsparql%3E++++++++++%0D%0A++++++++++++++++%7B++%0D%0A+++++++++++++++++++++SELECT+%3Fs+%3FequivalentProperty+%3Fo%0D%0A+++++++++++++++++++++WHERE+%7B+%0D%0A%09%09%09%09%09+%09%09+%3Fs+wdt%3AP1628+%3Fo+.+%0D%0A%09%09%09%09%09+%09%09+BIND+%28wdt%3AP1628+as+%3FequivalentProperty%29%0D%0A+++++++++++++++++++++%09%09+FILTER%28+REGEX%28STR%28%3Fo%29%2C+%22schema.org%22%29%29+%0D%0A%09%09%09%09%09%09+++%7D%0D%0A++++++++++++++++%7D++++++++%0D%0A+++++++%7D&should-sponge=&format=application%2Fld%2Bjson&CXML_redir_for_subjs=121&CXML_redir_for_hrefs=&timeout=30000000 -- JSON-LD

[2] http://linkeddata.uriburner.com/sparql?default-graph-uri=&query=PREFIX+wdt%3A+%3Chttp%3A%2F%2Fwww.wikidata.org%2Fprop%2Fdirect%2F%3E+%0D%0A%0D%0ACONSTRUCT+%7B%3Fs+owl%3AequivalentProperty+%3Fo%7D++%0D%0AWHERE+%7B+SERVICE+%3Chttp%3A%2F%2Fquery.wikidata.org%2Fsparql%3E++++++++++%0D%0A++++++++++++++++%7B++%0D%0A+++++++++++++++++++++SELECT+%3Fs+%3FequivalentProperty+%3Fo%0D%0A+++++++++++++++++++++WHERE+%7B+%0D%0A%09%09%09%09%09+%09%09+%3Fs+wdt%3AP1628+%3Fo+.+%0D%0A%09%09%09%09%09+%09%09+BIND+%28wdt%3AP1628+as+%3FequivalentProperty%29%0D%0A+++++++++++++++++++++%09%09+FILTER%28+REGEX%28STR%28%3Fo%29%2C+%22schema.org%22%29%29+%0D%0A%09%09%09%09%09%09+++%7D%0D%0A++++++++++++++++%7D++++++++%0D%0A+++++++%7D&should-sponge=&format=text%2Fturtle&CXML_redir_for_subjs=121&CXML_redir_for_hrefs=&timeout=30000000 -- RDF-Turtle

[3] http://linkeddata.uriburner.com/sparql?default-graph-uri=&query=PREFIX+wdt%3A+%3Chttp%3A%2F%2Fwww.wikidata.org%2Fprop%2Fdirect%2F%3E+%0D%0A%0D%0ACONSTRUCT+%7B%3Fs+owl%3AequivalentProperty+%3Fo%7D++%0D%0AWHERE+%7B+SERVICE+%3Chttp%3A%2F%2Fquery.wikidata.org%2Fsparql%3E++++++++++%0D%0A++++++++++++++++%7B++%0D%0A+++++++++++++++++++++SELECT+%3Fs+%3FequivalentProperty+%3Fo%0D%0A+++++++++++++++++++++WHERE+%7B+%0D%0A%09%09%09%09%09+%09%09+%3Fs+wdt%3AP1628+%3Fo+.+%0D%0A%09%09%09%09%09+%09%09+BIND+%28wdt%3AP1628+as+%3FequivalentProperty%29%0D%0A+++++++++++++++++++++%09%09+FILTER%28+REGEX%28STR%28%3Fo%29%2C+%22schema.org%22%29%29+%0D%0A%09%09%09%09%09%09+++%7D%0D%0A++++++++++++++++%7D++++++++%0D%0A+++++++%7D&should-sponge=&format=text%2Fhtml&CXML_redir_for_subjs=121&CXML_redir_for_hrefs=&timeout=30000000

[4] http://linkeddata.uriburner.com/sparql?default-graph-uri=&query=PREFIX+wdt%3A+%3Chttp%3A%2F%2Fwww.wikidata.org%2Fprop%2Fdirect%2F%3E+%0D%0A%0D%0ACONSTRUCT+%7B%3Fs+owl%3AequivalentProperty+%3Fo%7D++%0D%0AWHERE+%7B+SERVICE+%3Chttp%3A%2F%2Fquery.wikidata.org%2Fsparql%3E++++++++++%0D%0A++++++++++++++++%7B++%0D%0A+++++++++++++++++++++SELECT+%3Fs+%3FequivalentProperty+%3Fo%0D%0A+++++++++++++++++++++WHERE+%7B+%0D%0A%09%09%09%09%09+%09%09+%3Fs+wdt%3AP1628+%3Fo+.+%0D%0A%09%09%09%09%09+%09%09+BIND+%28wdt%3AP1628+as+%3FequivalentProperty%29%0D%0A+++++++++++++++++++++%09%09+FILTER%28+REGEX%28STR%28%3Fo%29%2C+%22schema.org%22%29%29+%0D%0A%09%09%09%09%09%09+++%7D%0D%0A++++++++++++++++%7D++++++++%0D%0A+++++++%7D&should-sponge=&format=application%2Fxhtml%2Bxml&CXML_redir_for_subjs=121&CXML_redir_for_hrefs=&timeout=30000000 -- XHTML+RDFa


##### Equivalent Class  Relations Generation #####

PREFIX wdt: <http://www.wikidata.org/prop/direct/>

CONSTRUCT {?s ?equivalentClass ?o} 
WHERE { SERVICE <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/>

CONSTRUCT {?s owl:equivalentClass ?o} 
WHERE { SERVICE <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+wdt%3A+%3Chttp%3A%2F%2Fwww.wikidata.org%2Fprop%2Fdirect%2F%3E+%0D%0A%0D%0ACONSTRUCT+%7B%3Fs+owl%3AequivalentClass+%3Fo%7D++%0D%0AWHERE+%7B+SERVICE+%3Chttp%3A%2F%2Fquery.wikidata.org%2Fsparql%3E++++++++++%0D%0A+++++++++++++%7B++%0D%0A%09%09%09%09SELECT+%3Fs+%3FequivalentClass+%3Fo%0D%0A%09%09%09%09WHERE+%7B+%3Fs+wdt%3AP1709+%3Fo+.+%0D%0A%09%09%09%09%09%09BIND+%28+wdt%3AP1709+as+%3FequivalentClass%29%0D%0A%09%09%09%09++++++++FILTER%28+REGEX%28STR%28%3Fo%29%2C+%22schema.org%22%29%29+%0D%0A%09%09%09%09%09++%7D%0D%0A+++++++++++++%7D++++++++%0D%0A++++%7D&should-sponge=&format=application%2Fld%2Bjson&CXML_redir_for_subjs=121&CXML_redir_for_hrefs=&timeout=30000000 -- JSON-LD

[2] http://linkeddata.uriburner.com/sparql?default-graph-uri=&query=PREFIX+wdt%3A+%3Chttp%3A%2F%2Fwww.wikidata.org%2Fprop%2Fdirect%2F%3E+%0D%0A%0D%0ACONSTRUCT+%7B%3Fs+owl%3AequivalentClass+%3Fo%7D++%0D%0AWHERE+%7B+SERVICE+%3Chttp%3A%2F%2Fquery.wikidata.org%2Fsparql%3E++++++++++%0D%0A+++++++++++++%7B++%0D%0A%09%09%09%09SELECT+%3Fs+%3FequivalentClass+%3Fo%0D%0A%09%09%09%09WHERE+%7B+%3Fs+wdt%3AP1709+%3Fo+.+%0D%0A%09%09%09%09%09%09BIND+%28+wdt%3AP1709+as+%3FequivalentClass%29%0D%0A%09%09%09%09++++++++FILTER%28+REGEX%28STR%28%3Fo%29%2C+%22schema.org%22%29%29+%0D%0A%09%09%09%09%09++%7D%0D%0A+++++++++++++%7D++++++++%0D%0A++++%7D&should-sponge=&format=text%2Fturtle&CXML_redir_for_subjs=121&CXML_redir_for_hrefs=&timeout=30000000 -- RDF-Turtle

[3] http://linkeddata.uriburner.com/sparql?default-graph-uri=&query=PREFIX+wdt%3A+%3Chttp%3A%2F%2Fwww.wikidata.org%2Fprop%2Fdirect%2F%3E+%0D%0A%0D%0ACONSTRUCT+%7B%3Fs+owl%3AequivalentClass+%3Fo%7D++%0D%0AWHERE+%7B+SERVICE+%3Chttp%3A%2F%2Fquery.wikidata.org%2Fsparql%3E++++++++++%0D%0A+++++++++++++%7B++%0D%0A%09%09%09%09SELECT+%3Fs+%3FequivalentClass+%3Fo%0D%0A%09%09%09%09WHERE+%7B+%3Fs+wdt%3AP1709+%3Fo+.+%0D%0A%09%09%09%09%09%09BIND+%28+wdt%3AP1709+as+%3FequivalentClass%29%0D%0A%09%09%09%09++++++++FILTER%28+REGEX%28STR%28%3Fo%29%2C+%22schema.org%22%29%29+%0D%0A%09%09%09%09%09++%7D%0D%0A+++++++++++++%7D++++++++%0D%0A++++%7D&should-sponge=&format=text%2Fhtml&CXML_redir_for_subjs=121&CXML_redir_for_hrefs=&timeout=30000000  -- HTML+Microdata

[4] http://linkeddata.uriburner.com/sparql?default-graph-uri=&query=PREFIX+wdt%3A+%3Chttp%3A%2F%2Fwww.wikidata.org%2Fprop%2Fdirect%2F%3E+%0D%0A%0D%0ACONSTRUCT+%7B%3Fs+owl%3AequivalentClass+%3Fo%7D++%0D%0AWHERE+%7B+SERVICE+%3Chttp%3A%2F%2Fquery.wikidata.org%2Fsparql%3E++++++++++%0D%0A+++++++++++++%7B++%0D%0A%09%09%09%09SELECT+%3Fs+%3FequivalentClass+%3Fo%0D%0A%09%09%09%09WHERE+%7B+%3Fs+wdt%3AP1709+%3Fo+.+%0D%0A%09%09%09%09%09%09BIND+%28+wdt%3AP1709+as+%3FequivalentClass%29%0D%0A%09%09%09%09++++++++FILTER%28+REGEX%28STR%28%3Fo%29%2C+%22schema.org%22%29%29+%0D%0A%09%09%09%09%09++%7D%0D%0A+++++++++++++%7D++++++++%0D%0A++++%7D&should-sponge=&format=application%2Fxhtml%2Bxml&CXML_redir_for_subjs=121&CXML_redir_for_hrefs=&timeout=30000000 -- XHTML+RDFa

Links:

[1] DBpedia 2016-04 Announcement 
-- 
Regards,

Kingsley Idehen	      
Founder & CEO 
OpenLink Software   (Home Page: http://www.openlinksw.com)

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