query: PREFIX gas: <http://www.bigdata.com/rdf/gas#>
  #defaultView:Graph
  SELECT ?item ?itemLabel ?researcher ?researcherLabel ?work ?workLabel ?linkTo ?size {
    { SELECT ?item (count(distinct ?element) as ?size) {
    { SERVICE gas:service {
      gas:program gas:gasClass "com.bigdata.rdf.graph.analytics.SSSP" ;
                  gas:in wd:Q503424 ;
                  gas:traversalDirection "Forward" ;
                  gas:out ?item ;
                  gas:out1 ?depth ;
                  gas:maxIterations 6 ;
                  gas:linkType wdt:P361 .
    } } UNION { SERVICE gas:service {
      gas:program gas:gasClass "com.bigdata.rdf.graph.analytics.SSSP" ;
                  gas:in wd:Q503424 ;
                  gas:traversalDirection "Reverse" ;
                  gas:out ?item ;
                  gas:out1 ?depth ;
                  gas:maxIterations 6 ;
                  gas:linkType wdt:P361 .
    } }
    OPTIONAL { ?element wdt:P1416 ?item }
    } GROUP BY ?item }
    OPTIONAL { ?item wdt:P361 ?linkTo }
    OPTIONAL { ?researcher wdt:P1416 ?item } 
    SERVICE wikibase:label {bd:serviceParam wikibase:language "en" }
  }
  Limit 2000