query.sparql

PREFIX gas: <http://www.bigdata.com/rdf/gas#>

SELECT ?author ?authorLabel ?work ?workLabel 
WITH {
 SELECT ?work ?author WHERE { 
  { }
       UNION {
   SELECT ?work ?author WHERE {
    SERVICE gas:service {
     gas:program gas:gasClass "com.bigdata.rdf.graph.analytics.BFS" ;
           gas:in wd:Q20980928 ;
           gas:target wd:Q24290415 ;
           gas:traversalDirection "Undirected" ;
           gas:out ?work ;
           gas:linkType wdt:P50 ;
    }
    ?work wdt:P50 ?author
   }
  } # UNION END
     UNION {
   SELECT ?work ?author WHERE {
    SERVICE gas:service {
     gas:program gas:gasClass "com.bigdata.rdf.graph.analytics.BFS" ;
           gas:in wd:Q20980928 ;
           gas:target wd:Q26720269 ;
           gas:traversalDirection "Undirected" ;
           gas:out ?work ;
           gas:linkType wdt:P50 ;
    }
    ?work wdt:P50 ?author
   }
  } # UNION END
              UNION {
   SELECT ?work ?author WHERE {
    SERVICE gas:service {
     gas:program gas:gasClass "com.bigdata.rdf.graph.analytics.BFS" ;
           gas:in wd:Q24290415 ;
           gas:target wd:Q24390693 ;
           gas:traversalDirection "Undirected" ;
           gas:out ?work ;
           gas:linkType wdt:P50 ;
    }
    ?work wdt:P50 ?author
   }
  } # UNION END
     UNION {
   SELECT ?work ?author WHERE {
    SERVICE gas:service {
     gas:program gas:gasClass "com.bigdata.rdf.graph.analytics.BFS" ;
           gas:in wd:Q24290415 ;
           gas:target wd:Q26720269 ;
           gas:traversalDirection "Undirected" ;
           gas:out ?work ;
           gas:linkType wdt:P50 ;
    }
    ?work wdt:P50 ?author
   }
  } # UNION END
                UNION {
   SELECT ?work ?author WHERE {
    SERVICE gas:service {
     gas:program gas:gasClass "com.bigdata.rdf.graph.analytics.BFS" ;
           gas:in wd:Q24390693 ;
           gas:target wd:Q26720269 ;
           gas:traversalDirection "Undirected" ;
           gas:out ?work ;
           gas:linkType wdt:P50 ;
    }
    ?work wdt:P50 ?author
   }
  } # UNION END
                       UNION {
   SELECT ?work ?author WHERE {
    SERVICE gas:service {
     gas:program gas:gasClass "com.bigdata.rdf.graph.analytics.BFS" ;
           gas:in wd:Q13520818 ;
           gas:target wd:Q20980928 ;
           gas:traversalDirection "Undirected" ;
           gas:out ?work ;
           gas:linkType wdt:P50 ;
    }
    ?work wdt:P50 ?author
   }
  } # UNION END
     UNION {
   SELECT ?work ?author WHERE {
    SERVICE gas:service {
     gas:program gas:gasClass "com.bigdata.rdf.graph.analytics.BFS" ;
           gas:in wd:Q13520818 ;
           gas:target wd:Q24290415 ;
           gas:traversalDirection "Undirected" ;
           gas:out ?work ;
           gas:linkType wdt:P50 ;
    }
    ?work wdt:P50 ?author
   }
  } # UNION END
     UNION {
   SELECT ?work ?author WHERE {
    SERVICE gas:service {
     gas:program gas:gasClass "com.bigdata.rdf.graph.analytics.BFS" ;
           gas:in wd:Q13520818 ;
           gas:target wd:Q24390693 ;
           gas:traversalDirection "Undirected" ;
           gas:out ?work ;
           gas:linkType wdt:P50 ;
    }
    ?work wdt:P50 ?author
   }
  } # UNION END
     UNION {
   SELECT ?work ?author WHERE {
    SERVICE gas:service {
     gas:program gas:gasClass "com.bigdata.rdf.graph.analytics.BFS" ;
           gas:in wd:Q13520818 ;
           gas:target wd:Q26720269 ;
           gas:traversalDirection "Undirected" ;
           gas:out ?work ;
           gas:linkType wdt:P50 ;
    }
    ?work wdt:P50 ?author
   }
  } # UNION END
         } 
} AS %result 
WHERE {
 INCLUDE %result 
 SERVICE wikibase:label { bd:serviceParam wikibase:language "en,da,de,es,fr,he,jp,nl,no,ru,sv,zh" . }
}