sub:assertion {
  sub:get-parts dct:description "This query returns the things denoted as parts of the given thing." ;
    dct:license <http://www.apache.org/licenses/LICENSE-2.0> ;
    a <https://w3id.org/kpxl/grlc/grlc-query> ;
    rdfs:label "Get parts of a thing" ;
    <https://w3id.org/kpxl/grlc/endpoint> <https://w3id.org/np/l/nanopub-query-1.1/repo/full> ;
    <https://w3id.org/kpxl/grlc/sparql> """prefix dct: <http://purl.org/dc/terms/>
prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>
prefix np: <http://www.nanopub.org/nschema#>
prefix npa: <http://purl.org/nanopub/admin/>
prefix npx: <http://purl.org/nanopub/x/>
prefix nt: <https://w3id.org/np/o/ntemplate/>

select distinct ?part (sample(?partLabel) as ?partLabel) ?np ?npLabel ?date ?pubkey where {
  { graph ?g {
      ?_thing_iri dct:hasPart ?part .
    }
    filter not exists {
      graph npa:graph {
        ?part npx:hasNanopubType npx:NanopubIndex .
      }
    }
  } union
  { graph ?g {
      ?part dct:partOf ?_thing_iri .
    }
  } union
  { graph ?gx {
      ?_thing_iri dct:hasPart ?index .
    }
    graph npa:graph {
      ?index npx:hasNanopubType npx:NanopubIndex .
      ?index np:hasAssertion ?a .
    }
    graph ?a {
      ?index npx:includesElement ?np .
    }
    graph npa:graph {
      ?np npx:introduces ?part .
    }
  }
  graph npa:graph {
    ?np npa:hasGraph ?g .
    ?np npa:hasValidSignatureForPublicKey ?pubkey .
    filter not exists { ?npx npx:invalidates ?np ; npa:hasValidSignatureForPublicKey ?pubkey . }
    ?np np:hasPublicationInfo ?i .
    ?np dct:created ?date .
    optional { ?np rdfs:label ?npLabel . }
  }
  optional { graph ?g {  ?part rdfs:label ?partLabel1 . } }
  optional { graph ?g {  ?part dct:title ?partLabel2 . } }
  optional { graph ?i {  ?part rdfs:label ?partLabel3 . } }
  optional { graph ?i {  ?part nt:hasLabelFromApi ?partLabel4 . } }
  optional { graph ?x { ?part rdfs:label ?partLabel5 . } }
  bind(coalesce(?partLabel1, ?partLabel2, ?partLabel3, ?partLabel4, ?partLabel5) as ?partLabel)
}
group by ?part ?np ?npLabel ?date ?pubkey
limit 1000""" .
}