sub:assertion {
  sub:get-planned-event-attendances dct:description "This query returns the events the given user plans to attend." ;
    dct:license <http://www.apache.org/licenses/LICENSE-2.0> ;
    a <https://w3id.org/kpxl/grlc/grlc-query> ;
    rdfs:label "Get planned event attendances" ;
    <https://w3id.org/kpxl/grlc/endpoint> <https://w3id.org/np/l/nanopub-query-1.1/repo/type/e0c10d8a3e60586806c4b357bb4767f6c71c162e061be85cfe165eaf18b13f2f> ;
    <https://w3id.org/kpxl/grlc/sparql> """prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>
prefix dct: <http://purl.org/dc/terms/>
prefix np: <http://www.nanopub.org/nschema#>
prefix npa: <http://purl.org/nanopub/admin/>
prefix npx: <http://purl.org/nanopub/x/>
prefix gen: <https://w3id.org/kpxl/gen/terms/>
prefix schema: <http://schema.org/>

select ?event ?event_label ?date ?np (\"^\" as ?np_label) where {
  graph npa:graph {
    ?np npx:hasNanopubType gen:plansToAttend .
    ?np npa:hasValidSignatureForPublicKeyHash ?pubkey .
    filter not exists { ?npx npx:invalidates ?np ; npa:hasValidSignatureForPublicKeyHash ?pubkey . }
    ?np npx:signedBy ?_user_iri .
    ?np np:hasAssertion ?a .
  }
  graph ?a {
    ?_user_iri gen:plansToAttend ?event .
    optional { ?event rdfs:label ?event_label }
    optional { ?event dct:date ?date1 }
  }
  optional {
    bind(iri(concat(\"https://w3id.org/np/l/nanopub-query-1.1/repo/type/\", sha256(str(gen:Space)))) as ?space_repo)
    service ?space_repo {
      graph npa:graph {
        ?nps npx:introduces ?event .
        ?nps npa:hasValidSignatureForPublicKeyHash ?pks .
        filter not exists { ?npsx npx:invalidates ?nps ; npa:hasValidSignatureForPublicKeyHash ?pks . }
        ?nps np:hasAssertion ?as .
      }
      graph ?as {
        ?event schema:startDate ?datetime .
        bind(xsd:date(substr(str(?datetime), 0, 11)) as ?date2)
      }
    }
  }
  bind(coalesce(?date1, ?date2) as ?date)
} order by desc(?date)""" .
}