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

-- 
Regards,

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

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