query-d1a278edd4fc7ccde65ae0b693dd33b4

PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX ps: <http://www.wikidata.org/prop/statement/>
PREFIX pq: <http://www.wikidata.org/prop/qualifier/>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX bd: <http://www.bigdata.com/rdf#>
#defaultView:Map{"hide":["?coordinates", "?layer"]}
SELECT ?item ?itemLabel (SAMPLE(?coordinates_) AS ?coordinates) ?layer WHERE {
  # see previous query: two ways to model shipwrecks; we include both, even for the RMS Titanic
  {
    ?item wdt:P31 wd:Q852190;
          wdt:P625 ?coordinates_.
    FILTER(?item != wd:Q25173)
    BIND("not Titanic"@en AS ?layer)
  } UNION {
    ?item p:P793 [
      a wikibase:BestRank;
      ps:P793 wd:Q906512;
      pq:P625 ?location
    ].
    FILTER(?item != wd:Q25173)
    BIND("not Titanic"@en AS ?layer)
  } UNION {
    wd:Q25173 wdt:P31 wd:Q852190;
              wdt:P625 ?coordinates_.
    BIND("RMS Titanic"@en AS ?layer)
  } UNION {
    wd:Q25173 p:P793 [
      a wikibase:BestRank;
      ps:P793 wd:Q906512;
      pq:P625 ?location
    ].
    BIND("RMS Titanic"@en AS ?layer)
  }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
GROUP BY ?item ?itemLabel ?layer

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v5("?coordinates") v2("?coordinates_"):::projected v1("?item"):::projected v5("?layer"):::projected v4("?location") a1((" ")) a2((" ")) c6(["wikibase:BestRank"]):::iri c12(["bd:serviceParam"]):::iri c8(["wd:Q906512"]):::iri c1(["wd:Q25173"]):::iri c14(["#91;AUTO_LANGUAGE#93;,en"]):::literal c3(["wd:Q852190"]):::iri subgraph union0[" Union "] subgraph union0l[" "] style union0l fill:#abf,stroke-dasharray: 3 3; subgraph union1[" Union "] subgraph union1l[" "] style union1l fill:#abf,stroke-dasharray: 3 3; subgraph union2[" Union "] subgraph union2l[" "] style union2l fill:#abf,stroke-dasharray: 3 3; a2 --"a"--> c6 a2 --"p:statement/P793"--> c8 a2 --"p:qualifier/P625"--> v4 c1 --"p:P793"--> a2 bind0[/"sRMS Titanic^^<http://www.w3.org/1999/02/22-rdf-syntax-ns#langString>'"/] bind0 --as--o v5 end subgraph union2r[" "] style union2r fill:#abf,stroke-dasharray: 3 3; c1 --"p:direct/P31"--> c3 c1 --"p:direct/P625"--> v2 bind1[/"sRMS Titanic^^<http://www.w3.org/1999/02/22-rdf-syntax-ns#langString>'"/] bind1 --as--o v5 end union2r <== or ==> union2l end end subgraph union1r[" "] style union1r fill:#abf,stroke-dasharray: 3 3; f2[["?item != 'wd:Q25173'"]] f2 --> v1 a1 --"a"--> c6 a1 --"p:statement/P793"--> c8 a1 --"p:qualifier/P625"--> v4 v1 --"p:P793"--> a1 bind3[/"snot Titanic^^<http://www.w3.org/1999/02/22-rdf-syntax-ns#langString>'"/] bind3 --as--o v5 end union1r <== or ==> union1l end end subgraph union0r[" "] style union0r fill:#abf,stroke-dasharray: 3 3; f4[["?item != 'wd:Q25173'"]] f4 --> v1 v1 --"p:direct/P31"--> c3 v1 --"p:direct/P625"--> v2 bind5[/"snot Titanic^^<http://www.w3.org/1999/02/22-rdf-syntax-ns#langString>'"/] bind5 --as--o v5 end union0r <== or ==> union0l end subgraph s1["http://wikiba.se/ontology#label"] style s1 stroke-width:4px; c12 --"wikibase:language"--> c14 end bind7[/"sample(?coordinates_)"/] v2 --o bind7 bind7 --as--o v5